1640830025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{827}}^1\times {\mathrm{4177}}^1$

素因数の和:5033

約数の個数: 24

約数和(自身を含む): 2144818080

約数和(自身を除く): 503988055

約数列:

[1, 5, 19, 25, 95, 475, 827, 4135, 4177, 15713, 20675, 20885, 78565, 79363, 104425, 392825, 396815, 1984075, 3454379, 17271895, 65633201, 86359475, 328166005, 1640830025]

約数ペア:

[(1, 1640830025), (5, 328166005), (19, 86359475), (25, 65633201), (95, 17271895), (475, 3454379), (827, 1984075), (4135, 396815), (4177, 392825), (15713, 104425), (20675, 79363), (20885, 78565)]