80206520

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87181}}^1$

素因数の和:87215

約数の個数: 32

約数和(自身を含む): 188313120

約数和(自身を除く): 108106600

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 87181, 174362, 348724, 435905, 697448, 871810, 1743620, 2005163, 3487240, 4010326, 8020652, 10025815, 16041304, 20051630, 40103260, 80206520]

約数ペア:

[(1, 80206520), (2, 40103260), (4, 20051630), (5, 16041304), (8, 10025815), (10, 8020652), (20, 4010326), (23, 3487240), (40, 2005163), (46, 1743620), (92, 871810), (115, 697448), (184, 435905), (230, 348724), (460, 174362), (920, 87181)]