18269320

素因数分解:

$2^3\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1031}}^1$

素因数の和:1485

約数の個数: 32

約数和(自身を含む): 41238720

約数和(自身を除く): 22969400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 443, 886, 1031, 1772, 2062, 2215, 3544, 4124, 4430, 5155, 8248, 8860, 10310, 17720, 20620, 41240, 456733, 913466, 1826932, 2283665, 3653864, 4567330, 9134660, 18269320]

約数ペア:

[(1, 18269320), (2, 9134660), (4, 4567330), (5, 3653864), (8, 2283665), (10, 1826932), (20, 913466), (40, 456733), (443, 41240), (886, 20620), (1031, 17720), (1772, 10310), (2062, 8860), (2215, 8248), (3544, 5155), (4124, 4430)]