18175840

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2417}}^1$

素因数の和:2479

約数の個数: 48

約数和(自身を含む): 43872192

約数和(自身を除く): 25696352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 80, 94, 160, 188, 235, 376, 470, 752, 940, 1504, 1880, 2417, 3760, 4834, 7520, 9668, 12085, 19336, 24170, 38672, 48340, 77344, 96680, 113599, 193360, 227198, 386720, 454396, 567995, 908792, 1135990, 1817584, 2271980, 3635168, 4543960, 9087920, 18175840]

約数ペア:

[(1, 18175840), (2, 9087920), (4, 4543960), (5, 3635168), (8, 2271980), (10, 1817584), (16, 1135990), (20, 908792), (32, 567995), (40, 454396), (47, 386720), (80, 227198), (94, 193360), (160, 113599), (188, 96680), (235, 77344), (376, 48340), (470, 38672), (752, 24170), (940, 19336), (1504, 12085), (1880, 9668), (2417, 7520), (3760, 4834)]