17880860

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11317}}^1$

素因数の和:11405

約数の個数: 24

約数和(自身を含む): 38028480

約数和(自身を除く): 20147620

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11317, 22634, 45268, 56585, 113170, 226340, 894043, 1788086, 3576172, 4470215, 8940430, 17880860]

約数ペア:

[(1, 17880860), (2, 8940430), (4, 4470215), (5, 3576172), (10, 1788086), (20, 894043), (79, 226340), (158, 113170), (316, 56585), (395, 45268), (790, 22634), (1580, 11317)]