18493460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1187}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 23419180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1187, 1558, 2374, 3116, 3895, 4748, 5935, 7790, 11870, 15580, 22553, 23740, 45106, 48667, 90212, 97334, 112765, 194668, 225530, 243335, 451060, 486670, 924673, 973340, 1849346, 3698692, 4623365, 9246730, 18493460]

約数ペア:

[(1, 18493460), (2, 9246730), (4, 4623365), (5, 3698692), (10, 1849346), (19, 973340), (20, 924673), (38, 486670), (41, 451060), (76, 243335), (82, 225530), (95, 194668), (164, 112765), (190, 97334), (205, 90212), (380, 48667), (410, 45106), (779, 23740), (820, 22553), (1187, 15580), (1558, 11870), (2374, 7790), (3116, 5935), (3895, 4748)]