12664240

素因数分解:

$2^4\times 5^1\times {\mathrm{158303}}^1$

素因数の和:158316

約数の個数: 20

約数和(自身を含む): 29444544

約数和(自身を除く): 16780304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158303, 316606, 633212, 791515, 1266424, 1583030, 2532848, 3166060, 6332120, 12664240]

約数ペア:

[(1, 12664240), (2, 6332120), (4, 3166060), (5, 2532848), (8, 1583030), (10, 1266424), (16, 791515), (20, 633212), (40, 316606), (80, 158303)]