9788890

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12391}}^1$

素因数の和:12477

約数の個数: 16

約数和(自身を含む): 17844480

約数和(自身を除く): 8055590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 12391, 24782, 61955, 123910, 978889, 1957778, 4894445, 9788890]

約数ペア:

[(1, 9788890), (2, 4894445), (5, 1957778), (10, 978889), (79, 123910), (158, 61955), (395, 24782), (790, 12391)]