18107780

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2467}}^1$

素因数の和:2843

約数の個数: 24

約数和(自身を含む): 38145408

約数和(自身を除く): 20037628

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 2467, 3670, 4934, 7340, 9868, 12335, 24670, 49340, 905389, 1810778, 3621556, 4526945, 9053890, 18107780]

約数ペア:

[(1, 18107780), (2, 9053890), (4, 4526945), (5, 3621556), (10, 1810778), (20, 905389), (367, 49340), (734, 24670), (1468, 12335), (1835, 9868), (2467, 7340), (3670, 4934)]