4020305

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 5140800

約数和(自身を除く): 1120495

約数列:

[1, 5, 19, 95, 101, 419, 505, 1919, 2095, 7961, 9595, 39805, 42319, 211595, 804061, 4020305]

約数ペア:

[(1, 4020305), (5, 804061), (19, 211595), (95, 42319), (101, 39805), (419, 9595), (505, 7961), (1919, 2095)]