55890760

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1439}}^1$

素因数の和:2421

約数の個数: 32

約数和(自身を含む): 125971200

約数和(自身を除く): 70080440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1439, 1942, 2878, 3884, 4855, 5756, 7195, 7768, 9710, 11512, 14390, 19420, 28780, 38840, 57560, 1397269, 2794538, 5589076, 6986345, 11178152, 13972690, 27945380, 55890760]

約数ペア:

[(1, 55890760), (2, 27945380), (4, 13972690), (5, 11178152), (8, 6986345), (10, 5589076), (20, 2794538), (40, 1397269), (971, 57560), (1439, 38840), (1942, 28780), (2878, 19420), (3884, 14390), (4855, 11512), (5756, 9710), (7195, 7768)]