86961010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1\times {\mathrm{491}}^1$

素因数の和:786

約数の個数: 32

約数和(自身を含む): 159408000

約数和(自身を除く): 72446990

約数列:

[1, 2, 5, 10, 89, 178, 199, 398, 445, 491, 890, 982, 995, 1990, 2455, 4910, 17711, 35422, 43699, 87398, 88555, 97709, 177110, 195418, 218495, 436990, 488545, 977090, 8696101, 17392202, 43480505, 86961010]

約数ペア:

[(1, 86961010), (2, 43480505), (5, 17392202), (10, 8696101), (89, 977090), (178, 488545), (199, 436990), (398, 218495), (445, 195418), (491, 177110), (890, 97709), (982, 88555), (995, 87398), (1990, 43699), (2455, 35422), (4910, 17711)]