64857460

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{4217}}^1$

素因数の和:4995

約数の個数: 24

約数和(自身を含む): 136410120

約数和(自身を除く): 71552660

約数列:

[1, 2, 4, 5, 10, 20, 769, 1538, 3076, 3845, 4217, 7690, 8434, 15380, 16868, 21085, 42170, 84340, 3242873, 6485746, 12971492, 16214365, 32428730, 64857460]

約数ペア:

[(1, 64857460), (2, 32428730), (4, 16214365), (5, 12971492), (10, 6485746), (20, 3242873), (769, 84340), (1538, 42170), (3076, 21085), (3845, 16868), (4217, 15380), (7690, 8434)]