18238040

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12323}}^1$

素因数の和:12371

約数の個数: 32

約数和(自身を含む): 42148080

約数和(自身を除く): 23910040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12323, 24646, 49292, 61615, 98584, 123230, 246460, 455951, 492920, 911902, 1823804, 2279755, 3647608, 4559510, 9119020, 18238040]

約数ペア:

[(1, 18238040), (2, 9119020), (4, 4559510), (5, 3647608), (8, 2279755), (10, 1823804), (20, 911902), (37, 492920), (40, 455951), (74, 246460), (148, 123230), (185, 98584), (296, 61615), (370, 49292), (740, 24646), (1480, 12323)]