20289120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{983}}^1$

素因数の和:1044

約数の個数: 96

約数和(自身を含む): 65463552

約数和(自身を除く): 45174432

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 983, 1032, 1290, 1376, 1720, 1966, 2064, 2580, 2949, 3440, 3932, 4128, 4915, 5160, 5898, 6880, 7864, 9830, 10320, 11796, 14745, 15728, 19660, 20640, 23592, 29490, 31456, 39320, 42269, 47184, 58980, 78640, 84538, 94368, 117960, 126807, 157280, 169076, 211345, 235920, 253614, 338152, 422690, 471840, 507228, 634035, 676304, 845380, 1014456, 1268070, 1352608, 1690760, 2028912, 2536140, 3381520, 4057824, 5072280, 6763040, 10144560, 20289120]

約数ペア:

[(1, 20289120), (2, 10144560), (3, 6763040), (4, 5072280), (5, 4057824), (6, 3381520), (8, 2536140), (10, 2028912), (12, 1690760), (15, 1352608), (16, 1268070), (20, 1014456), (24, 845380), (30, 676304), (32, 634035), (40, 507228), (43, 471840), (48, 422690), (60, 338152), (80, 253614), (86, 235920), (96, 211345), (120, 169076), (129, 157280), (160, 126807), (172, 117960), (215, 94368), (240, 84538), (258, 78640), (344, 58980), (430, 47184), (480, 42269), (516, 39320), (645, 31456), (688, 29490), (860, 23592), (983, 20640), (1032, 19660), (1290, 15728), (1376, 14745), (1720, 11796), (1966, 10320), (2064, 9830), (2580, 7864), (2949, 6880), (3440, 5898), (3932, 5160), (4128, 4915)]