18648680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3671}}^1$

素因数の和:3809

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 23652760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3671, 5080, 7342, 14684, 18355, 29368, 36710, 73420, 146840, 466217, 932434, 1864868, 2331085, 3729736, 4662170, 9324340, 18648680]

約数ペア:

[(1, 18648680), (2, 9324340), (4, 4662170), (5, 3729736), (8, 2331085), (10, 1864868), (20, 932434), (40, 466217), (127, 146840), (254, 73420), (508, 36710), (635, 29368), (1016, 18355), (1270, 14684), (2540, 7342), (3671, 5080)]