18224560

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1451}}^1$

素因数の和:1621

約数の個数: 40

約数和(自身を含む): 42671376

約数和(自身を除く): 24446816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1451, 1570, 2512, 2902, 3140, 5804, 6280, 7255, 11608, 12560, 14510, 23216, 29020, 58040, 116080, 227807, 455614, 911228, 1139035, 1822456, 2278070, 3644912, 4556140, 9112280, 18224560]

約数ペア:

[(1, 18224560), (2, 9112280), (4, 4556140), (5, 3644912), (8, 2278070), (10, 1822456), (16, 1139035), (20, 911228), (40, 455614), (80, 227807), (157, 116080), (314, 58040), (628, 29020), (785, 23216), (1256, 14510), (1451, 12560), (1570, 11608), (2512, 7255), (2902, 6280), (3140, 5804)]