28105155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{449}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 53071200

約数和(自身を除く): 24966045

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 107, 117, 195, 321, 449, 535, 585, 963, 1347, 1391, 1605, 2245, 4041, 4173, 4815, 5837, 6735, 6955, 12519, 17511, 20205, 20865, 29185, 48043, 52533, 62595, 87555, 144129, 240215, 262665, 432387, 624559, 720645, 1873677, 2161935, 3122795, 5621031, 9368385, 28105155]

約数ペア:

[(1, 28105155), (3, 9368385), (5, 5621031), (9, 3122795), (13, 2161935), (15, 1873677), (39, 720645), (45, 624559), (65, 432387), (107, 262665), (117, 240215), (195, 144129), (321, 87555), (449, 62595), (535, 52533), (585, 48043), (963, 29185), (1347, 20865), (1391, 20205), (1605, 17511), (2245, 12519), (4041, 6955), (4173, 6735), (4815, 5837)]