9780140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11927}}^1$

素因数の和:11977

約数の個数: 24

約数和(自身を含む): 21040992

約数和(自身を除く): 11260852

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 11927, 23854, 47708, 59635, 119270, 238540, 489007, 978014, 1956028, 2445035, 4890070, 9780140]

約数ペア:

[(1, 9780140), (2, 4890070), (4, 2445035), (5, 1956028), (10, 978014), (20, 489007), (41, 238540), (82, 119270), (164, 59635), (205, 47708), (410, 23854), (820, 11927)]