207760780

素因数分解:

$2^2\times 5^1\times {\mathrm{2909}}^1\times {\mathrm{3571}}^1$

素因数の和:6489

約数の個数: 24

約数和(自身を含む): 436569840

約数和(自身を除く): 228809060

約数列:

[1, 2, 4, 5, 10, 20, 2909, 3571, 5818, 7142, 11636, 14284, 14545, 17855, 29090, 35710, 58180, 71420, 10388039, 20776078, 41552156, 51940195, 103880390, 207760780]

約数ペア:

[(1, 207760780), (2, 103880390), (4, 51940195), (5, 41552156), (10, 20776078), (20, 10388039), (2909, 71420), (3571, 58180), (5818, 35710), (7142, 29090), (11636, 17855), (14284, 14545)]