18168728

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1201}}^1$

素因数の和:1299

約数の個数: 32

約数和(自身を含む): 35771520

約数和(自身を除く): 17602792

約数列:

[1, 2, 4, 8, 31, 61, 62, 122, 124, 244, 248, 488, 1201, 1891, 2402, 3782, 4804, 7564, 9608, 15128, 37231, 73261, 74462, 146522, 148924, 293044, 297848, 586088, 2271091, 4542182, 9084364, 18168728]

約数ペア:

[(1, 18168728), (2, 9084364), (4, 4542182), (8, 2271091), (31, 586088), (61, 297848), (62, 293044), (122, 148924), (124, 146522), (244, 74462), (248, 73261), (488, 37231), (1201, 15128), (1891, 9608), (2402, 7564), (3782, 4804)]