99401420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{70001}}^1$

素因数の和:70081

約数の個数: 24

約数和(自身を含む): 211686048

約数和(自身を除く): 112284628

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 70001, 140002, 280004, 350005, 700010, 1400020, 4970071, 9940142, 19880284, 24850355, 49700710, 99401420]

約数ペア:

[(1, 99401420), (2, 49700710), (4, 24850355), (5, 19880284), (10, 9940142), (20, 4970071), (71, 1400020), (142, 700010), (284, 350005), (355, 280004), (710, 140002), (1420, 70001)]