631395

素因数分解:

$3^4\times 5^1\times {\mathrm{1559}}^1$

素因数の和:1576

約数の個数: 20

約数和(自身を含む): 1132560

約数和(自身を除く): 501165

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1559, 4677, 7795, 14031, 23385, 42093, 70155, 126279, 210465, 631395]

約数ペア:

[(1, 631395), (3, 210465), (5, 126279), (9, 70155), (15, 42093), (27, 23385), (45, 14031), (81, 7795), (135, 4677), (405, 1559)]