256860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1427}}^1$

素因数の和:1442

約数の個数: 36

約数和(自身を含む): 779688

約数和(自身を除く): 522828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1427, 2854, 4281, 5708, 7135, 8562, 12843, 14270, 17124, 21405, 25686, 28540, 42810, 51372, 64215, 85620, 128430, 256860]

約数ペア:

[(1, 256860), (2, 128430), (3, 85620), (4, 64215), (5, 51372), (6, 42810), (9, 28540), (10, 25686), (12, 21405), (15, 17124), (18, 14270), (20, 12843), (30, 8562), (36, 7135), (45, 5708), (60, 4281), (90, 2854), (180, 1427)]