20466550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2$

素因数の和:122

約数の個数: 72

約数和(自身を含む): 43965936

約数和(自身を除く): 23499386

約数列:

[1, 2, 5, 10, 13, 23, 25, 26, 37, 46, 50, 65, 74, 115, 130, 185, 230, 299, 325, 370, 481, 575, 598, 650, 851, 925, 962, 1150, 1369, 1495, 1702, 1850, 2405, 2738, 2990, 4255, 4810, 6845, 7475, 8510, 11063, 12025, 13690, 14950, 17797, 21275, 22126, 24050, 31487, 34225, 35594, 42550, 55315, 62974, 68450, 88985, 110630, 157435, 177970, 276575, 314870, 409331, 444925, 553150, 787175, 818662, 889850, 1574350, 2046655, 4093310, 10233275, 20466550]

約数ペア:

[(1, 20466550), (2, 10233275), (5, 4093310), (10, 2046655), (13, 1574350), (23, 889850), (25, 818662), (26, 787175), (37, 553150), (46, 444925), (50, 409331), (65, 314870), (74, 276575), (115, 177970), (130, 157435), (185, 110630), (230, 88985), (299, 68450), (325, 62974), (370, 55315), (481, 42550), (575, 35594), (598, 34225), (650, 31487), (851, 24050), (925, 22126), (962, 21275), (1150, 17797), (1369, 14950), (1495, 13690), (1702, 12025), (1850, 11063), (2405, 8510), (2738, 7475), (2990, 6845), (4255, 4810)]