18512720

素因数分解:

$2^4\times 5^1\times {\mathrm{231409}}^1$

素因数の和:231422

約数の個数: 20

約数和(自身を含む): 43042260

約数和(自身を除く): 24529540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231409, 462818, 925636, 1157045, 1851272, 2314090, 3702544, 4628180, 9256360, 18512720]

約数ペア:

[(1, 18512720), (2, 9256360), (4, 4628180), (5, 3702544), (8, 2314090), (10, 1851272), (16, 1157045), (20, 925636), (40, 462818), (80, 231409)]