66810625

素因数分解:

$5^4\times 7^1\times {\mathrm{15271}}^1$

素因数の和:15298

約数の個数: 20

約数和(自身を含む): 95419456

約数和(自身を除く): 28608831

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 15271, 76355, 106897, 381775, 534485, 1908875, 2672425, 9544375, 13362125, 66810625]

約数ペア:

[(1, 66810625), (5, 13362125), (7, 9544375), (25, 2672425), (35, 1908875), (125, 534485), (175, 381775), (625, 106897), (875, 76355), (4375, 15271)]