20851810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3347}}^1$

素因数の和:3450

約数の個数: 32

約数和(自身を含む): 43390080

約数和(自身を除く): 22538270

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3347, 6230, 6694, 16735, 23429, 33470, 46858, 117145, 234290, 297883, 595766, 1489415, 2085181, 2978830, 4170362, 10425905, 20851810]

約数ペア:

[(1, 20851810), (2, 10425905), (5, 4170362), (7, 2978830), (10, 2085181), (14, 1489415), (35, 595766), (70, 297883), (89, 234290), (178, 117145), (445, 46858), (623, 33470), (890, 23429), (1246, 16735), (3115, 6694), (3347, 6230)]