9983984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{20129}}^1$

素因数の和:20168

約数の個数: 20

約数和(自身を含む): 19968960

約数和(自身を除く): 9984976

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 20129, 40258, 80516, 161032, 322064, 623999, 1247998, 2495996, 4991992, 9983984]

約数ペア:

[(1, 9983984), (2, 4991992), (4, 2495996), (8, 1247998), (16, 623999), (31, 322064), (62, 161032), (124, 80516), (248, 40258), (496, 20129)]