29988760

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1439}}^1$

素因数の和:1971

約数の個数: 32

約数和(自身を含む): 67651200

約数和(自身を除く): 37662440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 1439, 2084, 2605, 2878, 4168, 5210, 5756, 7195, 10420, 11512, 14390, 20840, 28780, 57560, 749719, 1499438, 2998876, 3748595, 5997752, 7497190, 14994380, 29988760]

約数ペア:

[(1, 29988760), (2, 14994380), (4, 7497190), (5, 5997752), (8, 3748595), (10, 2998876), (20, 1499438), (40, 749719), (521, 57560), (1042, 28780), (1439, 20840), (2084, 14390), (2605, 11512), (2878, 10420), (4168, 7195), (5210, 5756)]