18281380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{70313}}^1$

素因数の和:70335

約数の個数: 24

約数和(自身を含む): 41344632

約数和(自身を除く): 23063252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 70313, 140626, 281252, 351565, 703130, 914069, 1406260, 1828138, 3656276, 4570345, 9140690, 18281380]

約数ペア:

[(1, 18281380), (2, 9140690), (4, 4570345), (5, 3656276), (10, 1828138), (13, 1406260), (20, 914069), (26, 703130), (52, 351565), (65, 281252), (130, 140626), (260, 70313)]