20178285

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{701}}^1$

素因数の和:829

約数の個数: 32

約数和(自身を含む): 34369920

約数和(自身を除く): 14191635

約数列:

[1, 3, 5, 15, 19, 57, 95, 101, 285, 303, 505, 701, 1515, 1919, 2103, 3505, 5757, 9595, 10515, 13319, 28785, 39957, 66595, 70801, 199785, 212403, 354005, 1062015, 1345219, 4035657, 6726095, 20178285]

約数ペア:

[(1, 20178285), (3, 6726095), (5, 4035657), (15, 1345219), (19, 1062015), (57, 354005), (95, 212403), (101, 199785), (285, 70801), (303, 66595), (505, 39957), (701, 28785), (1515, 13319), (1919, 10515), (2103, 9595), (3505, 5757)]