20681630

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:812

約数の個数: 32

約数和(自身を含む): 38713248

約数和(自身を除く): 18031618

約数列:

[1, 2, 5, 10, 41, 73, 82, 146, 205, 365, 410, 691, 730, 1382, 2993, 3455, 5986, 6910, 14965, 28331, 29930, 50443, 56662, 100886, 141655, 252215, 283310, 504430, 2068163, 4136326, 10340815, 20681630]

約数ペア:

[(1, 20681630), (2, 10340815), (5, 4136326), (10, 2068163), (41, 504430), (73, 283310), (82, 252215), (146, 141655), (205, 100886), (365, 56662), (410, 50443), (691, 29930), (730, 28331), (1382, 14965), (2993, 6910), (3455, 5986)]