18228520

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4259}}^1$

素因数の和:4377

約数の個数: 32

約数和(自身を含む): 41407200

約数和(自身を除く): 23178680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4259, 4280, 8518, 17036, 21295, 34072, 42590, 85180, 170360, 455713, 911426, 1822852, 2278565, 3645704, 4557130, 9114260, 18228520]

約数ペア:

[(1, 18228520), (2, 9114260), (4, 4557130), (5, 3645704), (8, 2278565), (10, 1822852), (20, 911426), (40, 455713), (107, 170360), (214, 85180), (428, 42590), (535, 34072), (856, 21295), (1070, 17036), (2140, 8518), (4259, 4280)]