20100760

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6361}}^1$

素因数の和:6451

約数の個数: 32

約数和(自身を含む): 45806400

約数和(自身を除く): 25705640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6361, 12722, 25444, 31805, 50888, 63610, 127220, 254440, 502519, 1005038, 2010076, 2512595, 4020152, 5025190, 10050380, 20100760]

約数ペア:

[(1, 20100760), (2, 10050380), (4, 5025190), (5, 4020152), (8, 2512595), (10, 2010076), (20, 1005038), (40, 502519), (79, 254440), (158, 127220), (316, 63610), (395, 50888), (632, 31805), (790, 25444), (1580, 12722), (3160, 6361)]