388620405

素因数分解:

$3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{20611}}^1$

素因数の和:21041

約数の個数: 24

約数和(自身を含む): 675249120

約数和(自身を除く): 286628715

約数列:

[1, 3, 5, 9, 15, 45, 419, 1257, 2095, 3771, 6285, 18855, 20611, 61833, 103055, 185499, 309165, 927495, 8636009, 25908027, 43180045, 77724081, 129540135, 388620405]

約数ペア:

[(1, 388620405), (3, 129540135), (5, 77724081), (9, 43180045), (15, 25908027), (45, 8636009), (419, 927495), (1257, 309165), (2095, 185499), (3771, 103055), (6285, 61833), (18855, 20611)]