31391440

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4967}}^1$

素因数の和:5059

約数の個数: 40

約数和(自身を含む): 73923840

約数和(自身を除く): 42532400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4967, 6320, 9934, 19868, 24835, 39736, 49670, 79472, 99340, 198680, 392393, 397360, 784786, 1569572, 1961965, 3139144, 3923930, 6278288, 7847860, 15695720, 31391440]

約数ペア:

[(1, 31391440), (2, 15695720), (4, 7847860), (5, 6278288), (8, 3923930), (10, 3139144), (16, 1961965), (20, 1569572), (40, 784786), (79, 397360), (80, 392393), (158, 198680), (316, 99340), (395, 79472), (632, 49670), (790, 39736), (1264, 24835), (1580, 19868), (3160, 9934), (4967, 6320)]