20343721520

素因数分解:

$2^4\times 5^1\times {\mathrm{254296519}}^1$

素因数の和:254296532

約数の個数: 20

約数和(自身を含む): 47299152720

約数和(自身を除く): 26955431200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 254296519, 508593038, 1017186076, 1271482595, 2034372152, 2542965190, 4068744304, 5085930380, 10171860760, 20343721520]

約数ペア:

[(1, 20343721520), (2, 10171860760), (4, 5085930380), (5, 4068744304), (8, 2542965190), (10, 2034372152), (16, 1271482595), (20, 1017186076), (40, 508593038), (80, 254296519)]