18735960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3631}}^1$

素因数の和:3688

約数の個数: 64

約数和(自身を含む): 57530880

約数和(自身を除く): 38794920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 3631, 5160, 7262, 10893, 14524, 18155, 21786, 29048, 36310, 43572, 54465, 72620, 87144, 108930, 145240, 156133, 217860, 312266, 435720, 468399, 624532, 780665, 936798, 1249064, 1561330, 1873596, 2341995, 3122660, 3747192, 4683990, 6245320, 9367980, 18735960]

約数ペア:

[(1, 18735960), (2, 9367980), (3, 6245320), (4, 4683990), (5, 3747192), (6, 3122660), (8, 2341995), (10, 1873596), (12, 1561330), (15, 1249064), (20, 936798), (24, 780665), (30, 624532), (40, 468399), (43, 435720), (60, 312266), (86, 217860), (120, 156133), (129, 145240), (172, 108930), (215, 87144), (258, 72620), (344, 54465), (430, 43572), (516, 36310), (645, 29048), (860, 21786), (1032, 18155), (1290, 14524), (1720, 10893), (2580, 7262), (3631, 5160)]