28750275

素因数分解:

$3^3\times 5^2\times {\mathrm{191}}^1\times {\mathrm{223}}^1$

素因数の和:433

約数の個数: 48

約数和(自身を含む): 53329920

約数和(自身を除く): 24579645

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 191, 223, 225, 573, 669, 675, 955, 1115, 1719, 2007, 2865, 3345, 4775, 5157, 5575, 6021, 8595, 10035, 14325, 16725, 25785, 30105, 42593, 42975, 50175, 127779, 128925, 150525, 212965, 383337, 638895, 1064825, 1150011, 1916685, 3194475, 5750055, 9583425, 28750275]

約数ペア:

[(1, 28750275), (3, 9583425), (5, 5750055), (9, 3194475), (15, 1916685), (25, 1150011), (27, 1064825), (45, 638895), (75, 383337), (135, 212965), (191, 150525), (223, 128925), (225, 127779), (573, 50175), (669, 42975), (675, 42593), (955, 30105), (1115, 25785), (1719, 16725), (2007, 14325), (2865, 10035), (3345, 8595), (4775, 6021), (5157, 5575)]