18149725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2129}}^1$

素因数の和:2181

約数の個数: 24

約数和(自身を含む): 25355520

約数和(自身を除く): 7205795

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 2129, 8525, 10645, 23419, 53225, 65999, 117095, 329995, 585475, 725989, 1649975, 3629945, 18149725]

約数ペア:

[(1, 18149725), (5, 3629945), (11, 1649975), (25, 725989), (31, 585475), (55, 329995), (155, 117095), (275, 65999), (341, 53225), (775, 23419), (1705, 10645), (2129, 8525)]