9781040

素因数分解:

$2^4\times 5^1\times {\mathrm{122263}}^1$

素因数の和:122276

約数の個数: 20

約数和(自身を含む): 22741104

約数和(自身を除く): 12960064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 122263, 244526, 489052, 611315, 978104, 1222630, 1956208, 2445260, 4890520, 9781040]

約数ペア:

[(1, 9781040), (2, 4890520), (4, 2445260), (5, 1956208), (8, 1222630), (10, 978104), (16, 611315), (20, 489052), (40, 244526), (80, 122263)]