129282760

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{7499}}^1$

素因数の和:7941

約数の個数: 32

約数和(自身を含む): 291600000

約数和(自身を除く): 162317240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 7499, 8620, 14998, 17240, 29996, 37495, 59992, 74990, 149980, 299960, 3232069, 6464138, 12928276, 16160345, 25856552, 32320690, 64641380, 129282760]

約数ペア:

[(1, 129282760), (2, 64641380), (4, 32320690), (5, 25856552), (8, 16160345), (10, 12928276), (20, 6464138), (40, 3232069), (431, 299960), (862, 149980), (1724, 74990), (2155, 59992), (3448, 37495), (4310, 29996), (7499, 17240), (8620, 14998)]