20198260

素因数分解:

$2^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1931}}^1$

素因数の和:2463

約数の個数: 24

約数和(自身を含む): 42519456

約数和(自身を除く): 22321196

約数列:

[1, 2, 4, 5, 10, 20, 523, 1046, 1931, 2092, 2615, 3862, 5230, 7724, 9655, 10460, 19310, 38620, 1009913, 2019826, 4039652, 5049565, 10099130, 20198260]

約数ペア:

[(1, 20198260), (2, 10099130), (4, 5049565), (5, 4039652), (10, 2019826), (20, 1009913), (523, 38620), (1046, 19310), (1931, 10460), (2092, 9655), (2615, 7724), (3862, 5230)]