491556

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 1298304

約数和(自身を除く): 806748

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 69, 78, 92, 137, 138, 156, 274, 276, 299, 411, 548, 598, 822, 897, 1196, 1644, 1781, 1794, 3151, 3562, 3588, 5343, 6302, 7124, 9453, 10686, 12604, 18906, 21372, 37812, 40963, 81926, 122889, 163852, 245778, 491556]

約数ペア:

[(1, 491556), (2, 245778), (3, 163852), (4, 122889), (6, 81926), (12, 40963), (13, 37812), (23, 21372), (26, 18906), (39, 12604), (46, 10686), (52, 9453), (69, 7124), (78, 6302), (92, 5343), (137, 3588), (138, 3562), (156, 3151), (274, 1794), (276, 1781), (299, 1644), (411, 1196), (548, 897), (598, 822)]