20210257440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{1069}}^1$

素因数の和:1800

約数の個数: 288

約数和(自身を含む): 72770443200

約数和(自身を除く): 52560185760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 96, 114, 120, 144, 152, 160, 171, 180, 190, 228, 240, 285, 288, 304, 342, 360, 380, 456, 480, 570, 608, 684, 691, 720, 760, 855, 912, 1069, 1140, 1368, 1382, 1440, 1520, 1710, 1824, 2073, 2138, 2280, 2736, 2764, 3040, 3207, 3420, 3455, 4146, 4276, 4560, 5345, 5472, 5528, 6219, 6414, 6840, 6910, 8292, 8552, 9120, 9621, 10365, 10690, 11056, 12438, 12828, 13129, 13680, 13820, 16035, 16584, 17104, 19242, 20311, 20730, 21380, 22112, 24876, 25656, 26258, 27360, 27640, 31095, 32070, 33168, 34208, 38484, 39387, 40622, 41460, 42760, 48105, 49752, 51312, 52516, 55280, 60933, 62190, 64140, 65645, 66336, 76968, 78774, 81244, 82920, 85520, 96210, 99504, 101555, 102624, 105032, 110560, 118161, 121866, 124380, 128280, 131290, 153936, 157548, 162488, 165840, 171040, 182799, 192420, 196935, 199008, 203110, 210064, 236322, 243732, 248760, 256560, 262580, 304665, 307872, 315096, 324976, 331680, 365598, 384840, 393870, 406220, 420128, 472644, 487464, 497520, 513120, 525160, 590805, 609330, 630192, 649952, 731196, 738679, 769680, 787740, 812440, 913995, 945288, 974928, 995040, 1050320, 1181610, 1218660, 1260384, 1462392, 1477358, 1539360, 1575480, 1624880, 1827990, 1890576, 1949856, 2100640, 2216037, 2363220, 2437320, 2924784, 2954716, 3150960, 3249760, 3655980, 3693395, 3781152, 4432074, 4726440, 4874640, 5849568, 5909432, 6301920, 6648111, 7311960, 7386790, 8864148, 9452880, 9749280, 11080185, 11818864, 13296222, 14034901, 14623920, 14773580, 17728296, 18905760, 22160370, 23637728, 26592444, 28069802, 29247840, 29547160, 33240555, 35456592, 42104703, 44320740, 53184888, 56139604, 59094320, 66481110, 70174505, 70913184, 84209406, 88641480, 106369776, 112279208, 118188640, 126314109, 132962220, 140349010, 168418812, 177282960, 210523515, 212739552, 224558416, 252628218, 265924440, 280698020, 336837624, 354565920, 421047030, 449116832, 505256436, 531848880, 561396040, 631570545, 673675248, 842094060, 1010512872, 1063697760, 1122792080, 1263141090, 1347350496, 1684188120, 2021025744, 2245584160, 2526282180, 3368376240, 4042051488, 5052564360, 6736752480, 10105128720, 20210257440]

約数ペア:

[(1, 20210257440), (2, 10105128720), (3, 6736752480), (4, 5052564360), (5, 4042051488), (6, 3368376240), (8, 2526282180), (9, 2245584160), (10, 2021025744), (12, 1684188120), (15, 1347350496), (16, 1263141090), (18, 1122792080), (19, 1063697760), (20, 1010512872), (24, 842094060), (30, 673675248), (32, 631570545), (36, 561396040), (38, 531848880), (40, 505256436), (45, 449116832), (48, 421047030), (57, 354565920), (60, 336837624), (72, 280698020), (76, 265924440), (80, 252628218), (90, 224558416), (95, 212739552), (96, 210523515), (114, 177282960), (120, 168418812), (144, 140349010), (152, 132962220), (160, 126314109), (171, 118188640), (180, 112279208), (190, 106369776), (228, 88641480), (240, 84209406), (285, 70913184), (288, 70174505), (304, 66481110), (342, 59094320), (360, 56139604), (380, 53184888), (456, 44320740), (480, 42104703), (570, 35456592), (608, 33240555), (684, 29547160), (691, 29247840), (720, 28069802), (760, 26592444), (855, 23637728), (912, 22160370), (1069, 18905760), (1140, 17728296), (1368, 14773580), (1382, 14623920), (1440, 14034901), (1520, 13296222), (1710, 11818864), (1824, 11080185), (2073, 9749280), (2138, 9452880), (2280, 8864148), (2736, 7386790), (2764, 7311960), (3040, 6648111), (3207, 6301920), (3420, 5909432), (3455, 5849568), (4146, 4874640), (4276, 4726440), (4560, 4432074), (5345, 3781152), (5472, 3693395), (5528, 3655980), (6219, 3249760), (6414, 3150960), (6840, 2954716), (6910, 2924784), (8292, 2437320), (8552, 2363220), (9120, 2216037), (9621, 2100640), (10365, 1949856), (10690, 1890576), (11056, 1827990), (12438, 1624880), (12828, 1575480), (13129, 1539360), (13680, 1477358), (13820, 1462392), (16035, 1260384), (16584, 1218660), (17104, 1181610), (19242, 1050320), (20311, 995040), (20730, 974928), (21380, 945288), (22112, 913995), (24876, 812440), (25656, 787740), (26258, 769680), (27360, 738679), (27640, 731196), (31095, 649952), (32070, 630192), (33168, 609330), (34208, 590805), (38484, 525160), (39387, 513120), (40622, 497520), (41460, 487464), (42760, 472644), (48105, 420128), (49752, 406220), (51312, 393870), (52516, 384840), (55280, 365598), (60933, 331680), (62190, 324976), (64140, 315096), (65645, 307872), (66336, 304665), (76968, 262580), (78774, 256560), (81244, 248760), (82920, 243732), (85520, 236322), (96210, 210064), (99504, 203110), (101555, 199008), (102624, 196935), (105032, 192420), (110560, 182799), (118161, 171040), (121866, 165840), (124380, 162488), (128280, 157548), (131290, 153936)]