665710090

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{19597}}^1$

素因数の和:19726

約数の個数: 32

約数和(自身を含む): 1241729280

約数和(自身を除く): 576019190

約数列:

[1, 2, 5, 10, 43, 79, 86, 158, 215, 395, 430, 790, 3397, 6794, 16985, 19597, 33970, 39194, 97985, 195970, 842671, 1548163, 1685342, 3096326, 4213355, 7740815, 8426710, 15481630, 66571009, 133142018, 332855045, 665710090]

約数ペア:

[(1, 665710090), (2, 332855045), (5, 133142018), (10, 66571009), (43, 15481630), (79, 8426710), (86, 7740815), (158, 4213355), (215, 3096326), (395, 1685342), (430, 1548163), (790, 842671), (3397, 195970), (6794, 97985), (16985, 39194), (19597, 33970)]