123855760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{221171}}^1$

素因数の和:221191

約数の個数: 40

約数和(自身を含む): 329103936

約数和(自身を除く): 205248176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 221171, 442342, 884684, 1105855, 1548197, 1769368, 2211710, 3096394, 3538736, 4423420, 6192788, 7740985, 8846840, 12385576, 15481970, 17693680, 24771152, 30963940, 61927880, 123855760]

約数ペア:

[(1, 123855760), (2, 61927880), (4, 30963940), (5, 24771152), (7, 17693680), (8, 15481970), (10, 12385576), (14, 8846840), (16, 7740985), (20, 6192788), (28, 4423420), (35, 3538736), (40, 3096394), (56, 2211710), (70, 1769368), (80, 1548197), (112, 1105855), (140, 884684), (280, 442342), (560, 221171)]