521193080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{420317}}^1$

素因数の和:420359

約数の個数: 32

約数和(自身を含む): 1210515840

約数和(自身を除く): 689322760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 420317, 840634, 1681268, 2101585, 3362536, 4203170, 8406340, 13029827, 16812680, 26059654, 52119308, 65149135, 104238616, 130298270, 260596540, 521193080]

約数ペア:

[(1, 521193080), (2, 260596540), (4, 130298270), (5, 104238616), (8, 65149135), (10, 52119308), (20, 26059654), (31, 16812680), (40, 13029827), (62, 8406340), (124, 4203170), (155, 3362536), (248, 2101585), (310, 1681268), (620, 840634), (1240, 420317)]