25043985

素因数分解:

$3^4\times 5^1\times {\mathrm{61837}}^1$

素因数の和:61854

約数の個数: 20

約数和(自身を含む): 44894388

約数和(自身を除く): 19850403

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 61837, 185511, 309185, 556533, 927555, 1669599, 2782665, 5008797, 8347995, 25043985]

約数ペア:

[(1, 25043985), (3, 8347995), (5, 5008797), (9, 2782665), (15, 1669599), (27, 927555), (45, 556533), (81, 309185), (135, 185511), (405, 61837)]