123972560

素因数分解:

$2^4\times 5^1\times {\mathrm{1549657}}^1$

素因数の和:1549670

約数の個数: 20

約数和(自身を含む): 288236388

約数和(自身を除く): 164263828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1549657, 3099314, 6198628, 7748285, 12397256, 15496570, 24794512, 30993140, 61986280, 123972560]

約数ペア:

[(1, 123972560), (2, 61986280), (4, 30993140), (5, 24794512), (8, 15496570), (10, 12397256), (16, 7748285), (20, 6198628), (40, 3099314), (80, 1549657)]