28931475

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{8971}}^1$

素因数の和:9027

約数の個数: 24

約数和(自身を含む): 48951232

約数和(自身を除く): 20019757

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 8971, 26913, 44855, 134565, 224275, 385753, 672825, 1157259, 1928765, 5786295, 9643825, 28931475]

約数ペア:

[(1, 28931475), (3, 9643825), (5, 5786295), (15, 1928765), (25, 1157259), (43, 672825), (75, 385753), (129, 224275), (215, 134565), (645, 44855), (1075, 26913), (3225, 8971)]