31538960

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1499}}^1$

素因数の和:1775

約数の個数: 40

約数和(自身を含む): 73656000

約数和(自身を除く): 42117040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 1499, 2104, 2630, 2998, 4208, 5260, 5996, 7495, 10520, 11992, 14990, 21040, 23984, 29980, 59960, 119920, 394237, 788474, 1576948, 1971185, 3153896, 3942370, 6307792, 7884740, 15769480, 31538960]

約数ペア:

[(1, 31538960), (2, 15769480), (4, 7884740), (5, 6307792), (8, 3942370), (10, 3153896), (16, 1971185), (20, 1576948), (40, 788474), (80, 394237), (263, 119920), (526, 59960), (1052, 29980), (1315, 23984), (1499, 21040), (2104, 14990), (2630, 11992), (2998, 10520), (4208, 7495), (5260, 5996)]