138857380

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{52999}}^1$

素因数の和:53139

約数の個数: 24

約数和(自身を含む): 293832000

約数和(自身を除く): 154974620

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 52999, 105998, 211996, 264995, 529990, 1059980, 6942869, 13885738, 27771476, 34714345, 69428690, 138857380]

約数ペア:

[(1, 138857380), (2, 69428690), (4, 34714345), (5, 27771476), (10, 13885738), (20, 6942869), (131, 1059980), (262, 529990), (524, 264995), (655, 211996), (1310, 105998), (2620, 52999)]