72413978

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{487}}^1$

素因数の和:571

約数の個数: 64

約数和(自身を含む): 144291840

約数和(自身を除く): 71877862

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 43, 86, 91, 133, 182, 247, 266, 301, 487, 494, 559, 602, 817, 974, 1118, 1634, 1729, 3409, 3458, 3913, 5719, 6331, 6818, 7826, 9253, 10621, 11438, 12662, 18506, 20941, 21242, 41882, 44317, 64771, 74347, 88634, 120289, 129542, 146587, 148694, 240578, 272233, 293174, 397879, 544466, 795758, 842023, 1684046, 1905631, 2785153, 3811262, 5172427, 5570306, 10344854, 36206989, 72413978]

約数ペア:

[(1, 72413978), (2, 36206989), (7, 10344854), (13, 5570306), (14, 5172427), (19, 3811262), (26, 2785153), (38, 1905631), (43, 1684046), (86, 842023), (91, 795758), (133, 544466), (182, 397879), (247, 293174), (266, 272233), (301, 240578), (487, 148694), (494, 146587), (559, 129542), (602, 120289), (817, 88634), (974, 74347), (1118, 64771), (1634, 44317), (1729, 41882), (3409, 21242), (3458, 20941), (3913, 18506), (5719, 12662), (6331, 11438), (6818, 10621), (7826, 9253)]