221851125

素因数分解:

$3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 429287040

約数和(自身を除く): 207435915

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 75, 95, 97, 107, 125, 171, 225, 285, 291, 321, 375, 475, 485, 535, 855, 873, 963, 1125, 1425, 1455, 1605, 1843, 2033, 2375, 2425, 2675, 4275, 4365, 4815, 5529, 6099, 7125, 7275, 8025, 9215, 10165, 10379, 12125, 13375, 16587, 18297, 21375, 21825, 24075, 27645, 30495, 31137, 36375, 40125, 46075, 50825, 51895, 82935, 91485, 93411, 109125, 120375, 138225, 152475, 155685, 197201, 230375, 254125, 259475, 414675, 457425, 467055, 591603, 691125, 762375, 778425, 986005, 1297375, 1774809, 2073375, 2287125, 2335275, 2958015, 3892125, 4930025, 8874045, 11676375, 14790075, 24650125, 44370225, 73950375, 221851125]

約数ペア:

[(1, 221851125), (3, 73950375), (5, 44370225), (9, 24650125), (15, 14790075), (19, 11676375), (25, 8874045), (45, 4930025), (57, 3892125), (75, 2958015), (95, 2335275), (97, 2287125), (107, 2073375), (125, 1774809), (171, 1297375), (225, 986005), (285, 778425), (291, 762375), (321, 691125), (375, 591603), (475, 467055), (485, 457425), (535, 414675), (855, 259475), (873, 254125), (963, 230375), (1125, 197201), (1425, 155685), (1455, 152475), (1605, 138225), (1843, 120375), (2033, 109125), (2375, 93411), (2425, 91485), (2675, 82935), (4275, 51895), (4365, 50825), (4815, 46075), (5529, 40125), (6099, 36375), (7125, 31137), (7275, 30495), (8025, 27645), (9215, 24075), (10165, 21825), (10379, 21375), (12125, 18297), (13375, 16587)]