64280025

素因数分解:

$3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2621}}^1$

素因数の和:2746

約数の個数: 36

約数和(自身を含む): 116233260

約数和(自身を除く): 51953235

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 225, 327, 545, 981, 1635, 2621, 2725, 4905, 7863, 8175, 13105, 23589, 24525, 39315, 65525, 117945, 196575, 285689, 589725, 857067, 1428445, 2571201, 4285335, 7142225, 12856005, 21426675, 64280025]

約数ペア:

[(1, 64280025), (3, 21426675), (5, 12856005), (9, 7142225), (15, 4285335), (25, 2571201), (45, 1428445), (75, 857067), (109, 589725), (225, 285689), (327, 196575), (545, 117945), (981, 65525), (1635, 39315), (2621, 24525), (2725, 23589), (4905, 13105), (7863, 8175)]