258387560

素因数分解:

$2^3\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{4091}}^1$

素因数の和:5681

約数の個数: 32

約数和(自身を含む): 581882400

約数和(自身を除く): 323494840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1579, 3158, 4091, 6316, 7895, 8182, 12632, 15790, 16364, 20455, 31580, 32728, 40910, 63160, 81820, 163640, 6459689, 12919378, 25838756, 32298445, 51677512, 64596890, 129193780, 258387560]

約数ペア:

[(1, 258387560), (2, 129193780), (4, 64596890), (5, 51677512), (8, 32298445), (10, 25838756), (20, 12919378), (40, 6459689), (1579, 163640), (3158, 81820), (4091, 63160), (6316, 40910), (7895, 32728), (8182, 31580), (12632, 20455), (15790, 16364)]