9980860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6317}}^1$

素因数の和:6405

約数の個数: 24

約数和(自身を含む): 21228480

約数和(自身を除く): 11247620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 6317, 12634, 25268, 31585, 63170, 126340, 499043, 998086, 1996172, 2495215, 4990430, 9980860]

約数ペア:

[(1, 9980860), (2, 4990430), (4, 2495215), (5, 1996172), (10, 998086), (20, 499043), (79, 126340), (158, 63170), (316, 31585), (395, 25268), (790, 12634), (1580, 6317)]