20788210

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{28477}}^1$

素因数の和:28557

約数の個数: 16

約数和(自身を含む): 37932696

約数和(自身を除く): 17144486

約数列:

[1, 2, 5, 10, 73, 146, 365, 730, 28477, 56954, 142385, 284770, 2078821, 4157642, 10394105, 20788210]

約数ペア:

[(1, 20788210), (2, 10394105), (5, 4157642), (10, 2078821), (73, 284770), (146, 142385), (365, 56954), (730, 28477)]