20654210

素因数分解:

$2^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 38102400

約数和(自身を除く): 17448190

約数列:

[1, 2, 5, 10, 97, 107, 194, 199, 214, 398, 485, 535, 970, 995, 1070, 1990, 10379, 19303, 20758, 21293, 38606, 42586, 51895, 96515, 103790, 106465, 193030, 212930, 2065421, 4130842, 10327105, 20654210]

約数ペア:

[(1, 20654210), (2, 10327105), (5, 4130842), (10, 2065421), (97, 212930), (107, 193030), (194, 106465), (199, 103790), (214, 96515), (398, 51895), (485, 42586), (535, 38606), (970, 21293), (995, 20758), (1070, 19303), (1990, 10379)]