18675874640

素因数分解:

$2^4\times 5^1\times {\mathrm{2851}}^1\times {\mathrm{81883}}^1$

素因数の和:84747

約数の個数: 40

約数和(自身を含む): 43437169248

約数和(自身を除く): 24761294608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2851, 5702, 11404, 14255, 22808, 28510, 45616, 57020, 81883, 114040, 163766, 228080, 327532, 409415, 655064, 818830, 1310128, 1637660, 3275320, 6550640, 233448433, 466896866, 933793732, 1167242165, 1867587464, 2334484330, 3735174928, 4668968660, 9337937320, 18675874640]

約数ペア:

[(1, 18675874640), (2, 9337937320), (4, 4668968660), (5, 3735174928), (8, 2334484330), (10, 1867587464), (16, 1167242165), (20, 933793732), (40, 466896866), (80, 233448433), (2851, 6550640), (5702, 3275320), (11404, 1637660), (14255, 1310128), (22808, 818830), (28510, 655064), (45616, 409415), (57020, 327532), (81883, 228080), (114040, 163766)]