20253405

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13109}}^1$

素因数の和:13220

約数の個数: 16

約数和(自身を含む): 32722560

約数和(自身を除く): 12469155

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13109, 39327, 65545, 196635, 1350227, 4050681, 6751135, 20253405]

約数ペア:

[(1, 20253405), (3, 6751135), (5, 4050681), (15, 1350227), (103, 196635), (309, 65545), (515, 39327), (1545, 13109)]