131371640

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{5323}}^1$

素因数の和:5951

約数の個数: 32

約数和(自身を含む): 296120880

約数和(自身を除く): 164749240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 5323, 6170, 10646, 12340, 21292, 24680, 26615, 42584, 53230, 106460, 212920, 3284291, 6568582, 13137164, 16421455, 26274328, 32842910, 65685820, 131371640]

約数ペア:

[(1, 131371640), (2, 65685820), (4, 32842910), (5, 26274328), (8, 16421455), (10, 13137164), (20, 6568582), (40, 3284291), (617, 212920), (1234, 106460), (2468, 53230), (3085, 42584), (4936, 26615), (5323, 24680), (6170, 21292), (10646, 12340)]