31291360

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{877}}^1$

素因数の和:1115

約数の個数: 48

約数和(自身を含む): 74342016

約数和(自身を除く): 43050656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 877, 892, 1115, 1754, 1784, 2230, 3508, 3568, 4385, 4460, 7016, 7136, 8770, 8920, 14032, 17540, 17840, 28064, 35080, 35680, 70160, 140320, 195571, 391142, 782284, 977855, 1564568, 1955710, 3129136, 3911420, 6258272, 7822840, 15645680, 31291360]

約数ペア:

[(1, 31291360), (2, 15645680), (4, 7822840), (5, 6258272), (8, 3911420), (10, 3129136), (16, 1955710), (20, 1564568), (32, 977855), (40, 782284), (80, 391142), (160, 195571), (223, 140320), (446, 70160), (877, 35680), (892, 35080), (1115, 28064), (1754, 17840), (1784, 17540), (2230, 14032), (3508, 8920), (3568, 8770), (4385, 7136), (4460, 7016)]