82661240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18959}}^1$

素因数の和:19079

約数の個数: 32

約数和(自身を含む): 187704000

約数和(自身を除く): 105042760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 18959, 37918, 75836, 94795, 151672, 189590, 379180, 758360, 2066531, 4133062, 8266124, 10332655, 16532248, 20665310, 41330620, 82661240]

約数ペア:

[(1, 82661240), (2, 41330620), (4, 20665310), (5, 16532248), (8, 10332655), (10, 8266124), (20, 4133062), (40, 2066531), (109, 758360), (218, 379180), (436, 189590), (545, 151672), (872, 94795), (1090, 75836), (2180, 37918), (4360, 18959)]