3998240

素因数分解:

$2^5\times 5^1\times {\mathrm{24989}}^1$

素因数の和:25004

約数の個数: 24

約数和(自身を含む): 9446220

約数和(自身を除く): 5447980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 24989, 49978, 99956, 124945, 199912, 249890, 399824, 499780, 799648, 999560, 1999120, 3998240]

約数ペア:

[(1, 3998240), (2, 1999120), (4, 999560), (5, 799648), (8, 499780), (10, 399824), (16, 249890), (20, 199912), (32, 124945), (40, 99956), (80, 49978), (160, 24989)]