123267280

素因数分解:

$2^4\times 5^1\times {\mathrm{1540841}}^1$

素因数の和:1540854

約数の個数: 20

約数和(自身を含む): 286596612

約数和(自身を除く): 163329332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1540841, 3081682, 6163364, 7704205, 12326728, 15408410, 24653456, 30816820, 61633640, 123267280]

約数ペア:

[(1, 123267280), (2, 61633640), (4, 30816820), (5, 24653456), (8, 15408410), (10, 12326728), (16, 7704205), (20, 6163364), (40, 3081682), (80, 1540841)]