88891160

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8647}}^1$

素因数の和:8915

約数の個数: 32

約数和(自身を含む): 200806560

約数和(自身を除く): 111915400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8647, 10280, 17294, 34588, 43235, 69176, 86470, 172940, 345880, 2222279, 4444558, 8889116, 11111395, 17778232, 22222790, 44445580, 88891160]

約数ペア:

[(1, 88891160), (2, 44445580), (4, 22222790), (5, 17778232), (8, 11111395), (10, 8889116), (20, 4444558), (40, 2222279), (257, 345880), (514, 172940), (1028, 86470), (1285, 69176), (2056, 43235), (2570, 34588), (5140, 17294), (8647, 10280)]