20081750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 41827968

約数和(自身を除く): 21746218

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 125, 130, 167, 185, 250, 325, 334, 370, 481, 650, 835, 925, 962, 1625, 1670, 1850, 2171, 2405, 3250, 4175, 4342, 4625, 4810, 6179, 8350, 9250, 10855, 12025, 12358, 20875, 21710, 24050, 30895, 41750, 54275, 60125, 61790, 80327, 108550, 120250, 154475, 160654, 271375, 308950, 401635, 542750, 772375, 803270, 1544750, 2008175, 4016350, 10040875, 20081750]

約数ペア:

[(1, 20081750), (2, 10040875), (5, 4016350), (10, 2008175), (13, 1544750), (25, 803270), (26, 772375), (37, 542750), (50, 401635), (65, 308950), (74, 271375), (125, 160654), (130, 154475), (167, 120250), (185, 108550), (250, 80327), (325, 61790), (334, 60125), (370, 54275), (481, 41750), (650, 30895), (835, 24050), (925, 21710), (962, 20875), (1625, 12358), (1670, 12025), (1850, 10855), (2171, 9250), (2405, 8350), (3250, 6179), (4175, 4810), (4342, 4625)]