20376720

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:350

約数の個数: 240

約数和(自身を含む): 84494592

約数和(自身を除く): 64117872

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 311, 312, 315, 336, 360, 364, 390, 420, 455, 468, 504, 520, 546, 560, 585, 622, 624, 630, 720, 728, 780, 819, 840, 910, 933, 936, 1008, 1040, 1092, 1170, 1244, 1260, 1365, 1456, 1555, 1560, 1638, 1680, 1820, 1866, 1872, 2177, 2184, 2340, 2488, 2520, 2730, 2799, 3110, 3120, 3276, 3640, 3732, 4043, 4095, 4354, 4368, 4665, 4680, 4976, 5040, 5460, 5598, 6220, 6531, 6552, 7280, 7464, 8086, 8190, 8708, 9330, 9360, 10885, 10920, 11196, 12129, 12440, 13062, 13104, 13995, 14928, 16172, 16380, 17416, 18660, 19593, 20215, 21770, 21840, 22392, 24258, 24880, 26124, 27990, 28301, 32344, 32655, 32760, 34832, 36387, 37320, 39186, 40430, 43540, 44784, 48516, 52248, 55980, 56602, 60645, 64688, 65310, 65520, 72774, 74640, 78372, 80860, 84903, 87080, 97032, 97965, 104496, 111960, 113204, 121290, 130620, 141505, 145548, 156744, 161720, 169806, 174160, 181935, 194064, 195930, 223920, 226408, 242580, 254709, 261240, 283010, 291096, 313488, 323440, 339612, 363870, 391860, 424515, 452816, 485160, 509418, 522480, 566020, 582192, 679224, 727740, 783720, 849030, 970320, 1018836, 1132040, 1273545, 1358448, 1455480, 1567440, 1698060, 2037672, 2264080, 2547090, 2910960, 3396120, 4075344, 5094180, 6792240, 10188360, 20376720]

約数ペア:

[(1, 20376720), (2, 10188360), (3, 6792240), (4, 5094180), (5, 4075344), (6, 3396120), (7, 2910960), (8, 2547090), (9, 2264080), (10, 2037672), (12, 1698060), (13, 1567440), (14, 1455480), (15, 1358448), (16, 1273545), (18, 1132040), (20, 1018836), (21, 970320), (24, 849030), (26, 783720), (28, 727740), (30, 679224), (35, 582192), (36, 566020), (39, 522480), (40, 509418), (42, 485160), (45, 452816), (48, 424515), (52, 391860), (56, 363870), (60, 339612), (63, 323440), (65, 313488), (70, 291096), (72, 283010), (78, 261240), (80, 254709), (84, 242580), (90, 226408), (91, 223920), (104, 195930), (105, 194064), (112, 181935), (117, 174160), (120, 169806), (126, 161720), (130, 156744), (140, 145548), (144, 141505), (156, 130620), (168, 121290), (180, 113204), (182, 111960), (195, 104496), (208, 97965), (210, 97032), (234, 87080), (240, 84903), (252, 80860), (260, 78372), (273, 74640), (280, 72774), (311, 65520), (312, 65310), (315, 64688), (336, 60645), (360, 56602), (364, 55980), (390, 52248), (420, 48516), (455, 44784), (468, 43540), (504, 40430), (520, 39186), (546, 37320), (560, 36387), (585, 34832), (622, 32760), (624, 32655), (630, 32344), (720, 28301), (728, 27990), (780, 26124), (819, 24880), (840, 24258), (910, 22392), (933, 21840), (936, 21770), (1008, 20215), (1040, 19593), (1092, 18660), (1170, 17416), (1244, 16380), (1260, 16172), (1365, 14928), (1456, 13995), (1555, 13104), (1560, 13062), (1638, 12440), (1680, 12129), (1820, 11196), (1866, 10920), (1872, 10885), (2177, 9360), (2184, 9330), (2340, 8708), (2488, 8190), (2520, 8086), (2730, 7464), (2799, 7280), (3110, 6552), (3120, 6531), (3276, 6220), (3640, 5598), (3732, 5460), (4043, 5040), (4095, 4976), (4354, 4680), (4368, 4665)]