28810285

素因数分解:

$5^1\times 7^3\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:290

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 12143315

約数列:

[1, 5, 7, 35, 49, 107, 157, 245, 343, 535, 749, 785, 1099, 1715, 3745, 5243, 5495, 7693, 16799, 26215, 36701, 38465, 53851, 83995, 117593, 183505, 269255, 587965, 823151, 4115755, 5762057, 28810285]

約数ペア:

[(1, 28810285), (5, 5762057), (7, 4115755), (35, 823151), (49, 587965), (107, 269255), (157, 183505), (245, 117593), (343, 83995), (535, 53851), (749, 38465), (785, 36701), (1099, 26215), (1715, 16799), (3745, 7693), (5243, 5495)]