51274780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{36109}}^1$

素因数の和:36189

約数の個数: 24

約数和(自身を含む): 109196640

約数和(自身を除く): 57921860

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 36109, 72218, 144436, 180545, 361090, 722180, 2563739, 5127478, 10254956, 12818695, 25637390, 51274780]

約数ペア:

[(1, 51274780), (2, 25637390), (4, 12818695), (5, 10254956), (10, 5127478), (20, 2563739), (71, 722180), (142, 361090), (284, 180545), (355, 144436), (710, 72218), (1420, 36109)]