28816956

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{661}}^1$

素因数の和:851

約数の個数: 72

約数和(自身を含む): 83856864

約数和(自身を除く): 55039908

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 173, 252, 346, 519, 661, 692, 1038, 1211, 1322, 1557, 1983, 2076, 2422, 2644, 3114, 3633, 3966, 4627, 4844, 5949, 6228, 7266, 7932, 9254, 10899, 11898, 13881, 14532, 18508, 21798, 23796, 27762, 41643, 43596, 55524, 83286, 114353, 166572, 228706, 343059, 457412, 686118, 800471, 1029177, 1372236, 1600942, 2058354, 2401413, 3201884, 4116708, 4802826, 7204239, 9605652, 14408478, 28816956]

約数ペア:

[(1, 28816956), (2, 14408478), (3, 9605652), (4, 7204239), (6, 4802826), (7, 4116708), (9, 3201884), (12, 2401413), (14, 2058354), (18, 1600942), (21, 1372236), (28, 1029177), (36, 800471), (42, 686118), (63, 457412), (84, 343059), (126, 228706), (173, 166572), (252, 114353), (346, 83286), (519, 55524), (661, 43596), (692, 41643), (1038, 27762), (1211, 23796), (1322, 21798), (1557, 18508), (1983, 14532), (2076, 13881), (2422, 11898), (2644, 10899), (3114, 9254), (3633, 7932), (3966, 7266), (4627, 6228), (4844, 5949)]