20638860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31271}}^1$

素因数の和:31294

約数の個数: 48

約数和(自身を含む): 63044352

約数和(自身を除く): 42405492

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31271, 62542, 93813, 125084, 156355, 187626, 312710, 343981, 375252, 469065, 625420, 687962, 938130, 1031943, 1375924, 1719905, 1876260, 2063886, 3439810, 4127772, 5159715, 6879620, 10319430, 20638860]

約数ペア:

[(1, 20638860), (2, 10319430), (3, 6879620), (4, 5159715), (5, 4127772), (6, 3439810), (10, 2063886), (11, 1876260), (12, 1719905), (15, 1375924), (20, 1031943), (22, 938130), (30, 687962), (33, 625420), (44, 469065), (55, 375252), (60, 343981), (66, 312710), (110, 187626), (132, 156355), (165, 125084), (220, 93813), (330, 62542), (660, 31271)]