40225445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{19963}}^1$

素因数の和:20012

約数の個数: 16

約数和(自身を含む): 53663232

約数和(自身を除く): 13437787

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 19963, 99815, 259519, 618853, 1297595, 3094265, 8045089, 40225445]

約数ペア:

[(1, 40225445), (5, 8045089), (13, 3094265), (31, 1297595), (65, 618853), (155, 259519), (403, 99815), (2015, 19963)]