20713680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2213}}^1$

素因数の和:2245

約数の個数: 120

約数和(自身を含む): 74948328

約数和(自身を除く): 54234648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2213, 2340, 3120, 4426, 4680, 6639, 8852, 9360, 11065, 13278, 17704, 19917, 22130, 26556, 28769, 33195, 35408, 39834, 44260, 53112, 57538, 66390, 79668, 86307, 88520, 99585, 106224, 115076, 132780, 143845, 159336, 172614, 177040, 199170, 230152, 258921, 265560, 287690, 318672, 345228, 398340, 431535, 460304, 517842, 531120, 575380, 690456, 796680, 863070, 1035684, 1150760, 1294605, 1380912, 1593360, 1726140, 2071368, 2301520, 2589210, 3452280, 4142736, 5178420, 6904560, 10356840, 20713680]

約数ペア:

[(1, 20713680), (2, 10356840), (3, 6904560), (4, 5178420), (5, 4142736), (6, 3452280), (8, 2589210), (9, 2301520), (10, 2071368), (12, 1726140), (13, 1593360), (15, 1380912), (16, 1294605), (18, 1150760), (20, 1035684), (24, 863070), (26, 796680), (30, 690456), (36, 575380), (39, 531120), (40, 517842), (45, 460304), (48, 431535), (52, 398340), (60, 345228), (65, 318672), (72, 287690), (78, 265560), (80, 258921), (90, 230152), (104, 199170), (117, 177040), (120, 172614), (130, 159336), (144, 143845), (156, 132780), (180, 115076), (195, 106224), (208, 99585), (234, 88520), (240, 86307), (260, 79668), (312, 66390), (360, 57538), (390, 53112), (468, 44260), (520, 39834), (585, 35408), (624, 33195), (720, 28769), (780, 26556), (936, 22130), (1040, 19917), (1170, 17704), (1560, 13278), (1872, 11065), (2213, 9360), (2340, 8852), (3120, 6639), (4426, 4680)]