171226220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{778301}}^1$

素因数の和:778321

約数の個数: 24

約数和(自身を含む): 392264208

約数和(自身を除く): 221037988

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 778301, 1556602, 3113204, 3891505, 7783010, 8561311, 15566020, 17122622, 34245244, 42806555, 85613110, 171226220]

約数ペア:

[(1, 171226220), (2, 85613110), (4, 42806555), (5, 34245244), (10, 17122622), (11, 15566020), (20, 8561311), (22, 7783010), (44, 3891505), (55, 3113204), (110, 1556602), (220, 778301)]