647239416

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1\times {\mathrm{631}}^1$

素因数の和:1260

約数の個数: 64

約数和(自身を含む): 1644211200

約数和(自身を除く): 996971784

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 158, 237, 316, 474, 541, 631, 632, 948, 1082, 1262, 1623, 1893, 1896, 2164, 2524, 3246, 3786, 4328, 5048, 6492, 7572, 12984, 15144, 42739, 49849, 85478, 99698, 128217, 149547, 170956, 199396, 256434, 299094, 341371, 341912, 398792, 512868, 598188, 682742, 1024113, 1025736, 1196376, 1365484, 2048226, 2730968, 4096452, 8192904, 26968309, 53936618, 80904927, 107873236, 161809854, 215746472, 323619708, 647239416]

約数ペア:

[(1, 647239416), (2, 323619708), (3, 215746472), (4, 161809854), (6, 107873236), (8, 80904927), (12, 53936618), (24, 26968309), (79, 8192904), (158, 4096452), (237, 2730968), (316, 2048226), (474, 1365484), (541, 1196376), (631, 1025736), (632, 1024113), (948, 682742), (1082, 598188), (1262, 512868), (1623, 398792), (1893, 341912), (1896, 341371), (2164, 299094), (2524, 256434), (3246, 199396), (3786, 170956), (4328, 149547), (5048, 128217), (6492, 99698), (7572, 85478), (12984, 49849), (15144, 42739)]