18003100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4391}}^1$

素因数の和:4446

約数の個数: 36

約数和(自身を含む): 40028688

約数和(自身を除く): 22025588

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 4391, 8782, 17564, 21955, 43910, 87820, 109775, 180031, 219550, 360062, 439100, 720124, 900155, 1800310, 3600620, 4500775, 9001550, 18003100]

約数ペア:

[(1, 18003100), (2, 9001550), (4, 4500775), (5, 3600620), (10, 1800310), (20, 900155), (25, 720124), (41, 439100), (50, 360062), (82, 219550), (100, 180031), (164, 109775), (205, 87820), (410, 43910), (820, 21955), (1025, 17564), (2050, 8782), (4100, 4391)]