28581575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^2$

素因数の和:164

約数の個数: 36

約数和(自身を含む): 40471368

約数和(自身を除く): 11889793

約数列:

[1, 5, 11, 25, 37, 53, 55, 185, 265, 275, 407, 583, 925, 1325, 1961, 2035, 2809, 2915, 9805, 10175, 14045, 14575, 21571, 30899, 49025, 70225, 103933, 107855, 154495, 519665, 539275, 772475, 1143263, 2598325, 5716315, 28581575]

約数ペア:

[(1, 28581575), (5, 5716315), (11, 2598325), (25, 1143263), (37, 772475), (53, 539275), (55, 519665), (185, 154495), (265, 107855), (275, 103933), (407, 70225), (583, 49025), (925, 30899), (1325, 21571), (1961, 14575), (2035, 14045), (2809, 10175), (2915, 9805)]