20774875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 29315520

約数和(自身を除く): 8540645

約数列:

[1, 5, 11, 25, 29, 55, 125, 145, 275, 319, 521, 725, 1375, 1595, 2605, 3625, 5731, 7975, 13025, 15109, 28655, 39875, 65125, 75545, 143275, 166199, 377725, 716375, 830995, 1888625, 4154975, 20774875]

約数ペア:

[(1, 20774875), (5, 4154975), (11, 1888625), (25, 830995), (29, 716375), (55, 377725), (125, 166199), (145, 143275), (275, 75545), (319, 65125), (521, 39875), (725, 28655), (1375, 15109), (1595, 13025), (2605, 7975), (3625, 5731)]