489008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{2351}}^1$

素因数の和:2372

約数の個数: 20

約数和(自身を含む): 1020768

約数和(自身を除く): 531760

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 2351, 4702, 9404, 18808, 30563, 37616, 61126, 122252, 244504, 489008]

約数ペア:

[(1, 489008), (2, 244504), (4, 122252), (8, 61126), (13, 37616), (16, 30563), (26, 18808), (52, 9404), (104, 4702), (208, 2351)]