256804516815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{885823}}^1$

素因数の和:886100

約数の個数: 64

約数和(自身を含む): 514316500992

約数和(自身を除く): 257511984177

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 251, 385, 753, 1155, 1255, 1757, 2761, 3765, 5271, 8283, 8785, 13805, 19327, 26355, 41415, 57981, 96635, 289905, 885823, 2657469, 4429115, 6200761, 9744053, 13287345, 18602283, 29232159, 31003805, 48720265, 68208371, 93011415, 146160795, 204625113, 222341573, 341041855, 667024719, 1023125565, 1111707865, 1556391011, 2445757303, 3335123595, 4669173033, 7337271909, 7781955055, 12228786515, 17120301121, 23345865165, 36686359545, 51360903363, 85601505605, 256804516815]

約数ペア:

[(1, 256804516815), (3, 85601505605), (5, 51360903363), (7, 36686359545), (11, 23345865165), (15, 17120301121), (21, 12228786515), (33, 7781955055), (35, 7337271909), (55, 4669173033), (77, 3335123595), (105, 2445757303), (165, 1556391011), (231, 1111707865), (251, 1023125565), (385, 667024719), (753, 341041855), (1155, 222341573), (1255, 204625113), (1757, 146160795), (2761, 93011415), (3765, 68208371), (5271, 48720265), (8283, 31003805), (8785, 29232159), (13805, 18602283), (19327, 13287345), (26355, 9744053), (41415, 6200761), (57981, 4429115), (96635, 2657469), (289905, 885823)]