20416045

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{653}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 27287496

約数和(自身を除く): 6871451

約数列:

[1, 5, 13, 37, 65, 169, 185, 481, 653, 845, 2405, 3265, 6253, 8489, 24161, 31265, 42445, 110357, 120805, 314093, 551785, 1570465, 4083209, 20416045]

約数ペア:

[(1, 20416045), (5, 4083209), (13, 1570465), (37, 551785), (65, 314093), (169, 120805), (185, 110357), (481, 42445), (653, 31265), (845, 24161), (2405, 8489), (3265, 6253)]