9820880

素因数分解:

$2^4\times 5^1\times {\mathrm{122761}}^1$

素因数の和:122774

約数の個数: 20

約数和(自身を含む): 22833732

約数和(自身を除く): 13012852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 122761, 245522, 491044, 613805, 982088, 1227610, 1964176, 2455220, 4910440, 9820880]

約数ペア:

[(1, 9820880), (2, 4910440), (4, 2455220), (5, 1964176), (8, 1227610), (10, 982088), (16, 613805), (20, 491044), (40, 245522), (80, 122761)]