1640856478

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{488641}}^1$

素因数の和:488739

約数の個数: 16

約数和(自身を含む): 2603484576

約数和(自身を除く): 962628098

約数列:

[1, 2, 23, 46, 73, 146, 1679, 3358, 488641, 977282, 11238743, 22477486, 35670793, 71341586, 820428239, 1640856478]

約数ペア:

[(1, 1640856478), (2, 820428239), (23, 71341586), (46, 35670793), (73, 22477486), (146, 11238743), (1679, 977282), (3358, 488641)]