3989975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{1319}}^1$

素因数の和:1351

約数の個数: 18

約数和(自身を含む): 5442360

約数和(自身を除く): 1452385

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 1319, 3025, 6595, 14509, 32975, 72545, 159599, 362725, 797995, 3989975]

約数ペア:

[(1, 3989975), (5, 797995), (11, 362725), (25, 159599), (55, 72545), (121, 32975), (275, 14509), (605, 6595), (1319, 3025)]