18535280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5651}}^1$

素因数の和:5705

約数の個数: 40

約数和(自身を含む): 44153424

約数和(自身を除く): 25618144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 5651, 11302, 22604, 28255, 45208, 56510, 90416, 113020, 226040, 231691, 452080, 463382, 926764, 1158455, 1853528, 2316910, 3707056, 4633820, 9267640, 18535280]

約数ペア:

[(1, 18535280), (2, 9267640), (4, 4633820), (5, 3707056), (8, 2316910), (10, 1853528), (16, 1158455), (20, 926764), (40, 463382), (41, 452080), (80, 231691), (82, 226040), (164, 113020), (205, 90416), (328, 56510), (410, 45208), (656, 28255), (820, 22604), (1640, 11302), (3280, 5651)]