99980020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{714143}}^1$

素因数の和:714159

約数の個数: 24

約数和(自身を含む): 239952384

約数和(自身を除く): 139972364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 714143, 1428286, 2856572, 3570715, 4999001, 7141430, 9998002, 14282860, 19996004, 24995005, 49990010, 99980020]

約数ペア:

[(1, 99980020), (2, 49990010), (4, 24995005), (5, 19996004), (7, 14282860), (10, 9998002), (14, 7141430), (20, 4999001), (28, 3570715), (35, 2856572), (70, 1428286), (140, 714143)]