639340522

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^2\times {\mathrm{131}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 1081346112

約数和(自身を除く): 442005590

約数列:

[1, 2, 17, 23, 34, 46, 79, 131, 158, 262, 391, 782, 1343, 1817, 2227, 2686, 3013, 3634, 4454, 6026, 6241, 10349, 12482, 20698, 30889, 51221, 61778, 102442, 106097, 143543, 175933, 212194, 238027, 287086, 351866, 476054, 817571, 1635142, 2440231, 4046459, 4880462, 8092918, 13898707, 18804133, 27797414, 37608266, 319670261, 639340522]

約数ペア:

[(1, 639340522), (2, 319670261), (17, 37608266), (23, 27797414), (34, 18804133), (46, 13898707), (79, 8092918), (131, 4880462), (158, 4046459), (262, 2440231), (391, 1635142), (782, 817571), (1343, 476054), (1817, 351866), (2227, 287086), (2686, 238027), (3013, 212194), (3634, 175933), (4454, 143543), (6026, 106097), (6241, 102442), (10349, 61778), (12482, 51221), (20698, 30889)]