201821520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{840923}}^1$

素因数の和:840939

約数の個数: 40

約数和(自身を含む): 625647456

約数和(自身を除く): 423825936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 840923, 1681846, 2522769, 3363692, 4204615, 5045538, 6727384, 8409230, 10091076, 12613845, 13454768, 16818460, 20182152, 25227690, 33636920, 40364304, 50455380, 67273840, 100910760, 201821520]

約数ペア:

[(1, 201821520), (2, 100910760), (3, 67273840), (4, 50455380), (5, 40364304), (6, 33636920), (8, 25227690), (10, 20182152), (12, 16818460), (15, 13454768), (16, 12613845), (20, 10091076), (24, 8409230), (30, 6727384), (40, 5045538), (48, 4204615), (60, 3363692), (80, 2522769), (120, 1681846), (240, 840923)]