2912892520

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{721013}}^1$

素因数の和:721125

約数の個数: 32

約数和(自身を含む): 6618908520

約数和(自身を除く): 3706016000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 721013, 1442026, 2884052, 3605065, 5768104, 7210130, 14420260, 28840520, 72822313, 145644626, 291289252, 364111565, 582578504, 728223130, 1456446260, 2912892520]

約数ペア:

[(1, 2912892520), (2, 1456446260), (4, 728223130), (5, 582578504), (8, 364111565), (10, 291289252), (20, 145644626), (40, 72822313), (101, 28840520), (202, 14420260), (404, 7210130), (505, 5768104), (808, 3605065), (1010, 2884052), (2020, 1442026), (4040, 721013)]