12387680

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 29529360

約数和(自身を除く): 17141680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 557, 695, 1112, 1114, 1390, 2224, 2228, 2780, 2785, 4448, 4456, 5560, 5570, 8912, 11120, 11140, 17824, 22240, 22280, 44560, 77423, 89120, 154846, 309692, 387115, 619384, 774230, 1238768, 1548460, 2477536, 3096920, 6193840, 12387680]

約数ペア:

[(1, 12387680), (2, 6193840), (4, 3096920), (5, 2477536), (8, 1548460), (10, 1238768), (16, 774230), (20, 619384), (32, 387115), (40, 309692), (80, 154846), (139, 89120), (160, 77423), (278, 44560), (556, 22280), (557, 22240), (695, 17824), (1112, 11140), (1114, 11120), (1390, 8912), (2224, 5570), (2228, 5560), (2780, 4456), (2785, 4448)]