256571867895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{171923}}^1$

素因数の和:172232

約数の個数: 64

約数和(自身を含む): 478900491264

約数和(自身を除く): 222328623369

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 233, 305, 427, 699, 915, 1165, 1281, 1631, 2135, 3495, 4893, 6405, 8155, 14213, 24465, 42639, 71065, 99491, 171923, 213195, 298473, 497455, 515769, 859615, 1203461, 1492365, 2578845, 3610383, 6017305, 10487303, 18051915, 31461909, 40058059, 52436515, 73411121, 120174177, 157309545, 200290295, 220233363, 280406413, 367055605, 600870885, 841219239, 1101166815, 1402032065, 2443541599, 4206096195, 7330624797, 12217707995, 17104791193, 36653123985, 51314373579, 85523955965, 256571867895]

約数ペア:

[(1, 256571867895), (3, 85523955965), (5, 51314373579), (7, 36653123985), (15, 17104791193), (21, 12217707995), (35, 7330624797), (61, 4206096195), (105, 2443541599), (183, 1402032065), (233, 1101166815), (305, 841219239), (427, 600870885), (699, 367055605), (915, 280406413), (1165, 220233363), (1281, 200290295), (1631, 157309545), (2135, 120174177), (3495, 73411121), (4893, 52436515), (6405, 40058059), (8155, 31461909), (14213, 18051915), (24465, 10487303), (42639, 6017305), (71065, 3610383), (99491, 2578845), (171923, 1492365), (213195, 1203461), (298473, 859615), (497455, 515769)]