86670680

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8431}}^1$

素因数の和:8699

約数の個数: 32

約数和(自身を含む): 195791040

約数和(自身を除く): 109120360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8431, 10280, 16862, 33724, 42155, 67448, 84310, 168620, 337240, 2166767, 4333534, 8667068, 10833835, 17334136, 21667670, 43335340, 86670680]

約数ペア:

[(1, 86670680), (2, 43335340), (4, 21667670), (5, 17334136), (8, 10833835), (10, 8667068), (20, 4333534), (40, 2166767), (257, 337240), (514, 168620), (1028, 84310), (1285, 67448), (2056, 42155), (2570, 33724), (5140, 16862), (8431, 10280)]