8745020

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1321}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 18433968

約数和(自身を除く): 9688948

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1321, 1324, 1655, 2642, 3310, 5284, 6605, 6620, 13210, 26420, 437251, 874502, 1749004, 2186255, 4372510, 8745020]

約数ペア:

[(1, 8745020), (2, 4372510), (4, 2186255), (5, 1749004), (10, 874502), (20, 437251), (331, 26420), (662, 13210), (1321, 6620), (1324, 6605), (1655, 5284), (2642, 3310)]