17872520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10391}}^1$

素因数の和:10445

約数の個数: 32

約数和(自身を含む): 41152320

約数和(自身を除く): 23279800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10391, 20782, 41564, 51955, 83128, 103910, 207820, 415640, 446813, 893626, 1787252, 2234065, 3574504, 4468130, 8936260, 17872520]

約数ペア:

[(1, 17872520), (2, 8936260), (4, 4468130), (5, 3574504), (8, 2234065), (10, 1787252), (20, 893626), (40, 446813), (43, 415640), (86, 207820), (172, 103910), (215, 83128), (344, 51955), (430, 41564), (860, 20782), (1720, 10391)]