256936225

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{112939}}^1$

素因数の和:112969

約数の個数: 24

約数和(自身を含む): 392127680

約数和(自身を除く): 135191455

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 112939, 564695, 790573, 1468207, 2823475, 3952865, 7341035, 10277449, 19764325, 36705175, 51387245, 256936225]

約数ペア:

[(1, 256936225), (5, 51387245), (7, 36705175), (13, 19764325), (25, 10277449), (35, 7341035), (65, 3952865), (91, 2823475), (175, 1468207), (325, 790573), (455, 564695), (2275, 112939)]