64713640

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{20479}}^1$

素因数の和:20569

約数の個数: 32

約数和(自身を含む): 147456000

約数和(自身を除く): 82742360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 20479, 40958, 81916, 102395, 163832, 204790, 409580, 819160, 1617841, 3235682, 6471364, 8089205, 12942728, 16178410, 32356820, 64713640]

約数ペア:

[(1, 64713640), (2, 32356820), (4, 16178410), (5, 12942728), (8, 8089205), (10, 6471364), (20, 3235682), (40, 1617841), (79, 819160), (158, 409580), (316, 204790), (395, 163832), (632, 102395), (790, 81916), (1580, 40958), (3160, 20479)]