68307820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1229}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 164485440

約数和(自身を除く): 96177620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 397, 794, 1229, 1588, 1985, 2458, 2779, 3970, 4916, 5558, 6145, 7940, 8603, 11116, 12290, 13895, 17206, 24580, 27790, 34412, 43015, 55580, 86030, 172060, 487913, 975826, 1951652, 2439565, 3415391, 4879130, 6830782, 9758260, 13661564, 17076955, 34153910, 68307820]

約数ペア:

[(1, 68307820), (2, 34153910), (4, 17076955), (5, 13661564), (7, 9758260), (10, 6830782), (14, 4879130), (20, 3415391), (28, 2439565), (35, 1951652), (70, 975826), (140, 487913), (397, 172060), (794, 86030), (1229, 55580), (1588, 43015), (1985, 34412), (2458, 27790), (2779, 24580), (3970, 17206), (4916, 13895), (5558, 12290), (6145, 11116), (7940, 8603)]