2040802520

素因数分解:

$2^3\times 5^1\times {\mathrm{51020063}}^1$

素因数の和:51020074

約数の個数: 16

約数和(自身を含む): 4591805760

約数和(自身を除く): 2551003240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 51020063, 102040126, 204080252, 255100315, 408160504, 510200630, 1020401260, 2040802520]

約数ペア:

[(1, 2040802520), (2, 1020401260), (4, 510200630), (5, 408160504), (8, 255100315), (10, 204080252), (20, 102040126), (40, 51020063)]