290420505

素因数分解:

$3^3\times 5^1\times {\mathrm{2151263}}^1$

素因数の和:2151277

約数の個数: 16

約数和(自身を含む): 516303360

約数和(自身を除く): 225882855

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 2151263, 6453789, 10756315, 19361367, 32268945, 58084101, 96806835, 290420505]

約数ペア:

[(1, 290420505), (3, 96806835), (5, 58084101), (9, 32268945), (15, 19361367), (27, 10756315), (45, 6453789), (135, 2151263)]