42640155

素因数分解:

$3^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1229}}^1$

素因数の和:1500

約数の個数: 32

約数和(自身を含む): 76161600

約数和(自身を除く): 33521445

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 257, 771, 1229, 1285, 2313, 3687, 3855, 6145, 6939, 11061, 11565, 18435, 33183, 34695, 55305, 165915, 315853, 947559, 1579265, 2842677, 4737795, 8528031, 14213385, 42640155]

約数ペア:

[(1, 42640155), (3, 14213385), (5, 8528031), (9, 4737795), (15, 2842677), (27, 1579265), (45, 947559), (135, 315853), (257, 165915), (771, 55305), (1229, 34695), (1285, 33183), (2313, 18435), (3687, 11565), (3855, 11061), (6145, 6939)]