85871290

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{78781}}^1$

素因数の和:78897

約数の個数: 16

約数和(自身を含む): 155988360

約数和(自身を除く): 70117070

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 78781, 157562, 393905, 787810, 8587129, 17174258, 42935645, 85871290]

約数ペア:

[(1, 85871290), (2, 42935645), (5, 17174258), (10, 8587129), (109, 787810), (218, 393905), (545, 157562), (1090, 78781)]