19774960

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1637}}^1$

素因数の和:1801

約数の個数: 40

約数和(自身を含む): 46309536

約数和(自身を除く): 26534576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 1637, 2416, 3020, 3274, 6040, 6548, 8185, 12080, 13096, 16370, 26192, 32740, 65480, 130960, 247187, 494374, 988748, 1235935, 1977496, 2471870, 3954992, 4943740, 9887480, 19774960]

約数ペア:

[(1, 19774960), (2, 9887480), (4, 4943740), (5, 3954992), (8, 2471870), (10, 1977496), (16, 1235935), (20, 988748), (40, 494374), (80, 247187), (151, 130960), (302, 65480), (604, 32740), (755, 26192), (1208, 16370), (1510, 13096), (1637, 12080), (2416, 8185), (3020, 6548), (3274, 6040)]