18717580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133697}}^1$

素因数の和:133713

約数の個数: 24

約数和(自身を含む): 44922528

約数和(自身を除く): 26204948

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133697, 267394, 534788, 668485, 935879, 1336970, 1871758, 2673940, 3743516, 4679395, 9358790, 18717580]

約数ペア:

[(1, 18717580), (2, 9358790), (4, 4679395), (5, 3743516), (7, 2673940), (10, 1871758), (14, 1336970), (20, 935879), (28, 668485), (35, 534788), (70, 267394), (140, 133697)]