18315320

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1741}}^1$

素因数の和:2015

約数の個数: 32

約数和(自身を含む): 41389920

約数和(自身を除く): 23074600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 1741, 2104, 2630, 3482, 5260, 6964, 8705, 10520, 13928, 17410, 34820, 69640, 457883, 915766, 1831532, 2289415, 3663064, 4578830, 9157660, 18315320]

約数ペア:

[(1, 18315320), (2, 9157660), (4, 4578830), (5, 3663064), (8, 2289415), (10, 1831532), (20, 915766), (40, 457883), (263, 69640), (526, 34820), (1052, 17410), (1315, 13928), (1741, 10520), (2104, 8705), (2630, 6964), (3482, 5260)]