251015570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{4721}}^1$

素因数の和:5150

約数の個数: 32

約数和(自身を含む): 487877040

約数和(自身を除く): 236861470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 409, 818, 2045, 4090, 4721, 5317, 9442, 10634, 23605, 26585, 47210, 53170, 61373, 122746, 306865, 613730, 1930889, 3861778, 9654445, 19308890, 25101557, 50203114, 125507785, 251015570]

約数ペア:

[(1, 251015570), (2, 125507785), (5, 50203114), (10, 25101557), (13, 19308890), (26, 9654445), (65, 3861778), (130, 1930889), (409, 613730), (818, 306865), (2045, 122746), (4090, 61373), (4721, 53170), (5317, 47210), (9442, 26585), (10634, 23605)]