102040520

素因数分解:

$2^3\times 5^1\times {\mathrm{2551013}}^1$

素因数の和:2551024

約数の個数: 16

約数和(自身を含む): 229591260

約数和(自身を除く): 127550740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2551013, 5102026, 10204052, 12755065, 20408104, 25510130, 51020260, 102040520]

約数ペア:

[(1, 102040520), (2, 51020260), (4, 25510130), (5, 20408104), (8, 12755065), (10, 10204052), (20, 5102026), (40, 2551013)]