19749880

素因数分解:

$2^3\times 5^1\times {\mathrm{493747}}^1$

素因数の和:493758

約数の個数: 16

約数和(自身を含む): 44437320

約数和(自身を除く): 24687440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 493747, 987494, 1974988, 2468735, 3949976, 4937470, 9874940, 19749880]

約数ペア:

[(1, 19749880), (2, 9874940), (4, 4937470), (5, 3949976), (8, 2468735), (10, 1974988), (20, 987494), (40, 493747)]