28181180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74161}}^1$

素因数の和:74189

約数の個数: 24

約数和(自身を含む): 62296080

約数和(自身を除く): 34114900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74161, 148322, 296644, 370805, 741610, 1409059, 1483220, 2818118, 5636236, 7045295, 14090590, 28181180]

約数ペア:

[(1, 28181180), (2, 14090590), (4, 7045295), (5, 5636236), (10, 2818118), (19, 1483220), (20, 1409059), (38, 741610), (76, 370805), (95, 296644), (190, 148322), (380, 74161)]