77998240

素因数分解:

$2^5\times 5^1\times {\mathrm{487489}}^1$

素因数の和:487504

約数の個数: 24

約数和(自身を含む): 184271220

約数和(自身を除く): 106272980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 487489, 974978, 1949956, 2437445, 3899912, 4874890, 7799824, 9749780, 15599648, 19499560, 38999120, 77998240]

約数ペア:

[(1, 77998240), (2, 38999120), (4, 19499560), (5, 15599648), (8, 9749780), (10, 7799824), (16, 4874890), (20, 3899912), (32, 2437445), (40, 1949956), (80, 974978), (160, 487489)]