256088260

素因数分解:

$2^2\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{6563}}^1$

素因数の和:8523

約数の個数: 24

約数和(自身を含む): 538142976

約数和(自身を除く): 282054716

約数列:

[1, 2, 4, 5, 10, 20, 1951, 3902, 6563, 7804, 9755, 13126, 19510, 26252, 32815, 39020, 65630, 131260, 12804413, 25608826, 51217652, 64022065, 128044130, 256088260]

約数ペア:

[(1, 256088260), (2, 128044130), (4, 64022065), (5, 51217652), (10, 25608826), (20, 12804413), (1951, 131260), (3902, 65630), (6563, 39020), (7804, 32815), (9755, 26252), (13126, 19510)]