18360040

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{881}}^1$

素因数の和:1413

約数の個数: 32

約数和(自身を含む): 41436360

約数和(自身を除く): 23076320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 881, 1042, 1762, 2084, 2605, 3524, 4168, 4405, 5210, 7048, 8810, 10420, 17620, 20840, 35240, 459001, 918002, 1836004, 2295005, 3672008, 4590010, 9180020, 18360040]

約数ペア:

[(1, 18360040), (2, 9180020), (4, 4590010), (5, 3672008), (8, 2295005), (10, 1836004), (20, 918002), (40, 459001), (521, 35240), (881, 20840), (1042, 17620), (1762, 10420), (2084, 8810), (2605, 7048), (3524, 5210), (4168, 4405)]