9900560

素因数分解:

$2^4\times 5^1\times {\mathrm{123757}}^1$

素因数の和:123770

約数の個数: 20

約数和(自身を含む): 23018988

約数和(自身を除く): 13118428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123757, 247514, 495028, 618785, 990056, 1237570, 1980112, 2475140, 4950280, 9900560]

約数ペア:

[(1, 9900560), (2, 4950280), (4, 2475140), (5, 1980112), (8, 1237570), (10, 990056), (16, 618785), (20, 495028), (40, 247514), (80, 123757)]