28820385

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 56434560

約数和(自身を除く): 27614175

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 67, 79, 99, 121, 165, 201, 237, 335, 363, 395, 495, 603, 605, 711, 737, 869, 1005, 1089, 1185, 1815, 2211, 2607, 3015, 3555, 3685, 4345, 5293, 5445, 6633, 7821, 8107, 9559, 11055, 13035, 15879, 24321, 26465, 28677, 33165, 39105, 40535, 47637, 47795, 58223, 72963, 79395, 86031, 121605, 143385, 174669, 238185, 291115, 364815, 430155, 524007, 640453, 873345, 1921359, 2620035, 3202265, 5764077, 9606795, 28820385]

約数ペア:

[(1, 28820385), (3, 9606795), (5, 5764077), (9, 3202265), (11, 2620035), (15, 1921359), (33, 873345), (45, 640453), (55, 524007), (67, 430155), (79, 364815), (99, 291115), (121, 238185), (165, 174669), (201, 143385), (237, 121605), (335, 86031), (363, 79395), (395, 72963), (495, 58223), (603, 47795), (605, 47637), (711, 40535), (737, 39105), (869, 33165), (1005, 28677), (1089, 26465), (1185, 24321), (1815, 15879), (2211, 13035), (2607, 11055), (3015, 9559), (3555, 8107), (3685, 7821), (4345, 6633), (5293, 5445)]