19949875

素因数分解:

$5^3\times {\mathrm{11}}^2\times {\mathrm{1319}}^1$

素因数の和:1356

約数の個数: 24

約数和(自身を含む): 27387360

約数和(自身を除く): 7437485

約数列:

[1, 5, 11, 25, 55, 121, 125, 275, 605, 1319, 1375, 3025, 6595, 14509, 15125, 32975, 72545, 159599, 164875, 362725, 797995, 1813625, 3989975, 19949875]

約数ペア:

[(1, 19949875), (5, 3989975), (11, 1813625), (25, 797995), (55, 362725), (121, 164875), (125, 159599), (275, 72545), (605, 32975), (1319, 15125), (1375, 14509), (3025, 6595)]