400892

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:149

約数の個数: 24

約数和(自身を含む): 749952

約数和(自身を除く): 349060

約数列:

[1, 2, 4, 31, 53, 61, 62, 106, 122, 124, 212, 244, 1643, 1891, 3233, 3286, 3782, 6466, 6572, 7564, 12932, 100223, 200446, 400892]

約数ペア:

[(1, 400892), (2, 200446), (4, 100223), (31, 12932), (53, 7564), (61, 6572), (62, 6466), (106, 3782), (122, 3286), (124, 3233), (212, 1891), (244, 1643)]