128279408

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{70951}}^1$

素因数の和:71072

約数の個数: 20

約数和(自身を含む): 250744368

約数和(自身を除く): 122464960

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 70951, 141902, 283804, 567608, 1135216, 8017463, 16034926, 32069852, 64139704, 128279408]

約数ペア:

[(1, 128279408), (2, 64139704), (4, 32069852), (8, 16034926), (16, 8017463), (113, 1135216), (226, 567608), (452, 283804), (904, 141902), (1808, 70951)]