31126760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{15881}}^1$

素因数の和:15906

約数の個数: 48

約数和(自身を含む): 81474660

約数和(自身を除く): 50347900

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 15881, 31762, 63524, 79405, 111167, 127048, 158810, 222334, 317620, 444668, 555835, 635240, 778169, 889336, 1111670, 1556338, 2223340, 3112676, 3890845, 4446680, 6225352, 7781690, 15563380, 31126760]

約数ペア:

[(1, 31126760), (2, 15563380), (4, 7781690), (5, 6225352), (7, 4446680), (8, 3890845), (10, 3112676), (14, 2223340), (20, 1556338), (28, 1111670), (35, 889336), (40, 778169), (49, 635240), (56, 555835), (70, 444668), (98, 317620), (140, 222334), (196, 158810), (245, 127048), (280, 111167), (392, 79405), (490, 63524), (980, 31762), (1960, 15881)]