2499940

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{523}}^1$

素因数の和:771

約数の個数: 24

約数和(自身を含む): 5281920

約数和(自身を除く): 2781980

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 523, 956, 1046, 1195, 2092, 2390, 2615, 4780, 5230, 10460, 124997, 249994, 499988, 624985, 1249970, 2499940]

約数ペア:

[(1, 2499940), (2, 1249970), (4, 624985), (5, 499988), (10, 249994), (20, 124997), (239, 10460), (478, 5230), (523, 4780), (956, 2615), (1046, 2390), (1195, 2092)]