17865020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 39771648

約数和(自身を除く): 21906628

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 92, 115, 142, 230, 284, 355, 460, 547, 710, 1094, 1420, 1633, 2188, 2735, 3266, 5470, 6532, 8165, 10940, 12581, 16330, 25162, 32660, 38837, 50324, 62905, 77674, 125810, 155348, 194185, 251620, 388370, 776740, 893251, 1786502, 3573004, 4466255, 8932510, 17865020]

約数ペア:

[(1, 17865020), (2, 8932510), (4, 4466255), (5, 3573004), (10, 1786502), (20, 893251), (23, 776740), (46, 388370), (71, 251620), (92, 194185), (115, 155348), (142, 125810), (230, 77674), (284, 62905), (355, 50324), (460, 38837), (547, 32660), (710, 25162), (1094, 16330), (1420, 12581), (1633, 10940), (2188, 8165), (2735, 6532), (3266, 5470)]