78788680

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{4549}}^1$

素因数の和:4993

約数の個数: 32

約数和(自身を含む): 177723000

約数和(自身を除く): 98934320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1732, 2165, 3464, 4330, 4549, 8660, 9098, 17320, 18196, 22745, 36392, 45490, 90980, 181960, 1969717, 3939434, 7878868, 9848585, 15757736, 19697170, 39394340, 78788680]

約数ペア:

[(1, 78788680), (2, 39394340), (4, 19697170), (5, 15757736), (8, 9848585), (10, 7878868), (20, 3939434), (40, 1969717), (433, 181960), (866, 90980), (1732, 45490), (2165, 36392), (3464, 22745), (4330, 18196), (4549, 17320), (8660, 9098)]