28282905

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{173}}^2$

素因数の和:367

約数の個数: 48

約数和(自身を含む): 57797760

約数和(自身を除く): 29514855

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 173, 189, 315, 519, 865, 945, 1211, 1557, 2595, 3633, 4671, 6055, 7785, 10899, 18165, 23355, 29929, 32697, 54495, 89787, 149645, 163485, 209503, 269361, 448935, 628509, 808083, 1047515, 1346805, 1885527, 3142545, 4040415, 5656581, 9427635, 28282905]

約数ペア:

[(1, 28282905), (3, 9427635), (5, 5656581), (7, 4040415), (9, 3142545), (15, 1885527), (21, 1346805), (27, 1047515), (35, 808083), (45, 628509), (63, 448935), (105, 269361), (135, 209503), (173, 163485), (189, 149645), (315, 89787), (519, 54495), (865, 32697), (945, 29929), (1211, 23355), (1557, 18165), (2595, 10899), (3633, 7785), (4671, 6055)]