9790540

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{997}}^1$

素因数の和:1497

約数の個数: 24

約数和(自身を含む): 20622672

約数和(自身を除く): 10832132

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 997, 1964, 1994, 2455, 3988, 4910, 4985, 9820, 9970, 19940, 489527, 979054, 1958108, 2447635, 4895270, 9790540]

約数ペア:

[(1, 9790540), (2, 4895270), (4, 2447635), (5, 1958108), (10, 979054), (20, 489527), (491, 19940), (982, 9970), (997, 9820), (1964, 4985), (1994, 4910), (2455, 3988)]