9998480

素因数分解:

$2^4\times 5^1\times {\mathrm{124981}}^1$

素因数の和:124994

約数の個数: 20

約数和(自身を含む): 23246652

約数和(自身を除く): 13248172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 124981, 249962, 499924, 624905, 999848, 1249810, 1999696, 2499620, 4999240, 9998480]

約数ペア:

[(1, 9998480), (2, 4999240), (4, 2499620), (5, 1999696), (8, 1249810), (10, 999848), (16, 624905), (20, 499924), (40, 249962), (80, 124981)]