256434864

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20627}}^1$

素因数の和:20682

約数の個数: 80

約数和(自身を含む): 777593088

約数和(自身を除く): 521158224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 37, 42, 48, 56, 74, 84, 111, 112, 148, 168, 222, 259, 296, 336, 444, 518, 592, 777, 888, 1036, 1554, 1776, 2072, 3108, 4144, 6216, 12432, 20627, 41254, 61881, 82508, 123762, 144389, 165016, 247524, 288778, 330032, 433167, 495048, 577556, 763199, 866334, 990096, 1155112, 1526398, 1732668, 2289597, 2310224, 3052796, 3465336, 4579194, 5342393, 6105592, 6930672, 9158388, 10684786, 12211184, 16027179, 18316776, 21369572, 32054358, 36633552, 42739144, 64108716, 85478288, 128217432, 256434864]

約数ペア:

[(1, 256434864), (2, 128217432), (3, 85478288), (4, 64108716), (6, 42739144), (7, 36633552), (8, 32054358), (12, 21369572), (14, 18316776), (16, 16027179), (21, 12211184), (24, 10684786), (28, 9158388), (37, 6930672), (42, 6105592), (48, 5342393), (56, 4579194), (74, 3465336), (84, 3052796), (111, 2310224), (112, 2289597), (148, 1732668), (168, 1526398), (222, 1155112), (259, 990096), (296, 866334), (336, 763199), (444, 577556), (518, 495048), (592, 433167), (777, 330032), (888, 288778), (1036, 247524), (1554, 165016), (1776, 144389), (2072, 123762), (3108, 82508), (4144, 61881), (6216, 41254), (12432, 20627)]