28201905

素因数分解:

$3^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{659}}^1$

素因数の和:990

約数の個数: 32

約数和(自身を含む): 50371200

約数和(自身を除く): 22169295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 317, 659, 951, 1585, 1977, 2853, 3295, 4755, 5931, 8559, 9885, 14265, 17793, 29655, 42795, 88965, 208903, 626709, 1044515, 1880127, 3133545, 5640381, 9400635, 28201905]

約数ペア:

[(1, 28201905), (3, 9400635), (5, 5640381), (9, 3133545), (15, 1880127), (27, 1044515), (45, 626709), (135, 208903), (317, 88965), (659, 42795), (951, 29655), (1585, 17793), (1977, 14265), (2853, 9885), (3295, 8559), (4755, 5931)]