20528585

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{751}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 31186944

約数和(自身を除く): 10658359

約数列:

[1, 5, 7, 11, 35, 55, 71, 77, 355, 385, 497, 751, 781, 2485, 3755, 3905, 5257, 5467, 8261, 26285, 27335, 41305, 53321, 57827, 266605, 289135, 373247, 586531, 1866235, 2932655, 4105717, 20528585]

約数ペア:

[(1, 20528585), (5, 4105717), (7, 2932655), (11, 1866235), (35, 586531), (55, 373247), (71, 289135), (77, 266605), (355, 57827), (385, 53321), (497, 41305), (751, 27335), (781, 26285), (2485, 8261), (3755, 5467), (3905, 5257)]