221368580

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{11399}}^1$

素因数の和:12379

約数の個数: 24

約数和(自身を含む): 465393600

約数和(自身を除く): 244025020

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 3884, 4855, 9710, 11399, 19420, 22798, 45596, 56995, 113990, 227980, 11068429, 22136858, 44273716, 55342145, 110684290, 221368580]

約数ペア:

[(1, 221368580), (2, 110684290), (4, 55342145), (5, 44273716), (10, 22136858), (20, 11068429), (971, 227980), (1942, 113990), (3884, 56995), (4855, 45596), (9710, 22798), (11399, 19420)]