20294280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:105

約数の個数: 256

約数和(自身を含む): 76032000

約数和(自身を除く): 55737720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 27, 30, 36, 38, 40, 43, 45, 46, 54, 57, 60, 69, 72, 76, 86, 90, 92, 95, 108, 114, 115, 120, 129, 135, 138, 152, 171, 172, 180, 184, 190, 207, 215, 216, 228, 230, 258, 270, 276, 285, 342, 344, 345, 360, 380, 387, 414, 430, 437, 456, 460, 513, 516, 540, 552, 570, 621, 645, 684, 690, 760, 774, 817, 828, 855, 860, 874, 920, 989, 1026, 1032, 1035, 1080, 1140, 1161, 1242, 1290, 1311, 1368, 1380, 1548, 1634, 1656, 1710, 1720, 1748, 1935, 1978, 2052, 2070, 2185, 2280, 2322, 2451, 2484, 2565, 2580, 2622, 2760, 2967, 3096, 3105, 3268, 3420, 3496, 3870, 3933, 3956, 4085, 4104, 4140, 4370, 4644, 4902, 4945, 4968, 5130, 5160, 5244, 5805, 5934, 6210, 6536, 6555, 6840, 7353, 7740, 7866, 7912, 8170, 8280, 8740, 8901, 9288, 9804, 9890, 10260, 10488, 11610, 11799, 11868, 12255, 12420, 13110, 14706, 14835, 15480, 15732, 16340, 17480, 17802, 18791, 19608, 19665, 19780, 20520, 22059, 23220, 23598, 23736, 24510, 24840, 26220, 26703, 29412, 29670, 31464, 32680, 35604, 36765, 37582, 39330, 39560, 44118, 44505, 46440, 47196, 49020, 52440, 53406, 56373, 58824, 58995, 59340, 71208, 73530, 75164, 78660, 88236, 89010, 93955, 94392, 98040, 106812, 110295, 112746, 117990, 118680, 133515, 147060, 150328, 157320, 169119, 176472, 178020, 187910, 213624, 220590, 225492, 235980, 267030, 281865, 294120, 338238, 356040, 375820, 441180, 450984, 471960, 507357, 534060, 563730, 676476, 751640, 845595, 882360, 1014714, 1068120, 1127460, 1352952, 1691190, 2029428, 2254920, 2536785, 3382380, 4058856, 5073570, 6764760, 10147140, 20294280]

約数ペア:

[(1, 20294280), (2, 10147140), (3, 6764760), (4, 5073570), (5, 4058856), (6, 3382380), (8, 2536785), (9, 2254920), (10, 2029428), (12, 1691190), (15, 1352952), (18, 1127460), (19, 1068120), (20, 1014714), (23, 882360), (24, 845595), (27, 751640), (30, 676476), (36, 563730), (38, 534060), (40, 507357), (43, 471960), (45, 450984), (46, 441180), (54, 375820), (57, 356040), (60, 338238), (69, 294120), (72, 281865), (76, 267030), (86, 235980), (90, 225492), (92, 220590), (95, 213624), (108, 187910), (114, 178020), (115, 176472), (120, 169119), (129, 157320), (135, 150328), (138, 147060), (152, 133515), (171, 118680), (172, 117990), (180, 112746), (184, 110295), (190, 106812), (207, 98040), (215, 94392), (216, 93955), (228, 89010), (230, 88236), (258, 78660), (270, 75164), (276, 73530), (285, 71208), (342, 59340), (344, 58995), (345, 58824), (360, 56373), (380, 53406), (387, 52440), (414, 49020), (430, 47196), (437, 46440), (456, 44505), (460, 44118), (513, 39560), (516, 39330), (540, 37582), (552, 36765), (570, 35604), (621, 32680), (645, 31464), (684, 29670), (690, 29412), (760, 26703), (774, 26220), (817, 24840), (828, 24510), (855, 23736), (860, 23598), (874, 23220), (920, 22059), (989, 20520), (1026, 19780), (1032, 19665), (1035, 19608), (1080, 18791), (1140, 17802), (1161, 17480), (1242, 16340), (1290, 15732), (1311, 15480), (1368, 14835), (1380, 14706), (1548, 13110), (1634, 12420), (1656, 12255), (1710, 11868), (1720, 11799), (1748, 11610), (1935, 10488), (1978, 10260), (2052, 9890), (2070, 9804), (2185, 9288), (2280, 8901), (2322, 8740), (2451, 8280), (2484, 8170), (2565, 7912), (2580, 7866), (2622, 7740), (2760, 7353), (2967, 6840), (3096, 6555), (3105, 6536), (3268, 6210), (3420, 5934), (3496, 5805), (3870, 5244), (3933, 5160), (3956, 5130), (4085, 4968), (4104, 4945), (4140, 4902), (4370, 4644)]