890265805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^2$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 1347377760

約数和(自身を除く): 457111955

約数列:

[1, 5, 11, 13, 19, 55, 65, 71, 95, 143, 169, 209, 247, 355, 715, 781, 845, 923, 1045, 1235, 1349, 1859, 2717, 3211, 3905, 4615, 5041, 6745, 9295, 10153, 11999, 13585, 14839, 16055, 17537, 25205, 35321, 50765, 55451, 59995, 65533, 74195, 87685, 95779, 131989, 176605, 192907, 227981, 277255, 327665, 478895, 659945, 720863, 851929, 964535, 1053569, 1139905, 1245127, 2507791, 3604315, 4259645, 5267845, 6225635, 9371219, 12538955, 13696397, 16186651, 46856095, 68481985, 80933255, 178053161, 890265805]

約数ペア:

[(1, 890265805), (5, 178053161), (11, 80933255), (13, 68481985), (19, 46856095), (55, 16186651), (65, 13696397), (71, 12538955), (95, 9371219), (143, 6225635), (169, 5267845), (209, 4259645), (247, 3604315), (355, 2507791), (715, 1245127), (781, 1139905), (845, 1053569), (923, 964535), (1045, 851929), (1235, 720863), (1349, 659945), (1859, 478895), (2717, 327665), (3211, 277255), (3905, 227981), (4615, 192907), (5041, 176605), (6745, 131989), (9295, 95779), (10153, 87685), (11999, 74195), (13585, 65533), (14839, 59995), (16055, 55451), (17537, 50765), (25205, 35321)]