65421820

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{6829}}^1$

素因数の和:7317

約数の個数: 24

約数和(自身を含む): 137692800

約数和(自身を除く): 72270980

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 6829, 9580, 13658, 27316, 34145, 68290, 136580, 3271091, 6542182, 13084364, 16355455, 32710910, 65421820]

約数ペア:

[(1, 65421820), (2, 32710910), (4, 16355455), (5, 13084364), (10, 6542182), (20, 3271091), (479, 136580), (958, 68290), (1916, 34145), (2395, 27316), (4790, 13658), (6829, 9580)]