349440280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1248001}}^1$

素因数の和:1248019

約数の個数: 32

約数和(自身を含む): 898561440

約数和(自身を除く): 549121160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1248001, 2496002, 4992004, 6240005, 8736007, 9984008, 12480010, 17472014, 24960020, 34944028, 43680035, 49920040, 69888056, 87360070, 174720140, 349440280]

約数ペア:

[(1, 349440280), (2, 174720140), (4, 87360070), (5, 69888056), (7, 49920040), (8, 43680035), (10, 34944028), (14, 24960020), (20, 17472014), (28, 12480010), (35, 9984008), (40, 8736007), (56, 6240005), (70, 4992004), (140, 2496002), (280, 1248001)]