28135480

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6829}}^1$

素因数の和:6943

約数の個数: 32

約数和(自身を含む): 63928800

約数和(自身を除く): 35793320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6829, 13658, 27316, 34145, 54632, 68290, 136580, 273160, 703387, 1406774, 2813548, 3516935, 5627096, 7033870, 14067740, 28135480]

約数ペア:

[(1, 28135480), (2, 14067740), (4, 7033870), (5, 5627096), (8, 3516935), (10, 2813548), (20, 1406774), (40, 703387), (103, 273160), (206, 136580), (412, 68290), (515, 54632), (824, 34145), (1030, 27316), (2060, 13658), (4120, 6829)]