208027720

素因数分解:

$2^3\times 5^1\times {\mathrm{617}}^1\times {\mathrm{8429}}^1$

素因数の和:9057

約数の個数: 32

約数和(自身を含む): 468876600

約数和(自身を除く): 260848880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 617, 1234, 2468, 3085, 4936, 6170, 8429, 12340, 16858, 24680, 33716, 42145, 67432, 84290, 168580, 337160, 5200693, 10401386, 20802772, 26003465, 41605544, 52006930, 104013860, 208027720]

約数ペア:

[(1, 208027720), (2, 104013860), (4, 52006930), (5, 41605544), (8, 26003465), (10, 20802772), (20, 10401386), (40, 5200693), (617, 337160), (1234, 168580), (2468, 84290), (3085, 67432), (4936, 42145), (6170, 33716), (8429, 24680), (12340, 16858)]