161701515

素因数分解:

$3^4\times 5^1\times {\mathrm{399263}}^1$

素因数の和:399280

約数の個数: 20

約数和(自身を含む): 289865664

約数和(自身を除く): 128164149

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 399263, 1197789, 1996315, 3593367, 5988945, 10780101, 17966835, 32340303, 53900505, 161701515]

約数ペア:

[(1, 161701515), (3, 53900505), (5, 32340303), (9, 17966835), (15, 10780101), (27, 5988945), (45, 3593367), (81, 1996315), (135, 1197789), (405, 399263)]