256290480

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{39551}}^1$

素因数の和:39576

約数の個数: 100

約数和(自身を含む): 890157312

約数和(自身を除く): 633866832

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 39551, 79102, 118653, 158204, 197755, 237306, 316408, 355959, 395510, 474612, 593265, 632816, 711918, 791020, 949224, 1067877, 1186530, 1423836, 1582040, 1779795, 1898448, 2135754, 2373060, 2847672, 3164080, 3203631, 3559590, 4271508, 4746120, 5339385, 5695344, 6407262, 7119180, 8543016, 9492240, 10678770, 12814524, 14238360, 16018155, 17086032, 21357540, 25629048, 28476720, 32036310, 42715080, 51258096, 64072620, 85430160, 128145240, 256290480]

約数ペア:

[(1, 256290480), (2, 128145240), (3, 85430160), (4, 64072620), (5, 51258096), (6, 42715080), (8, 32036310), (9, 28476720), (10, 25629048), (12, 21357540), (15, 17086032), (16, 16018155), (18, 14238360), (20, 12814524), (24, 10678770), (27, 9492240), (30, 8543016), (36, 7119180), (40, 6407262), (45, 5695344), (48, 5339385), (54, 4746120), (60, 4271508), (72, 3559590), (80, 3203631), (81, 3164080), (90, 2847672), (108, 2373060), (120, 2135754), (135, 1898448), (144, 1779795), (162, 1582040), (180, 1423836), (216, 1186530), (240, 1067877), (270, 949224), (324, 791020), (360, 711918), (405, 632816), (432, 593265), (540, 474612), (648, 395510), (720, 355959), (810, 316408), (1080, 237306), (1296, 197755), (1620, 158204), (2160, 118653), (3240, 79102), (6480, 39551)]