9999680

素因数分解:

$2^6\times 5^1\times {\mathrm{31249}}^1$

素因数の和:31266

約数の個数: 28

約数和(自身を含む): 23812500

約数和(自身を除く): 13812820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 31249, 62498, 124996, 156245, 249992, 312490, 499984, 624980, 999968, 1249960, 1999936, 2499920, 4999840, 9999680]

約数ペア:

[(1, 9999680), (2, 4999840), (4, 2499920), (5, 1999936), (8, 1249960), (10, 999968), (16, 624980), (20, 499984), (32, 312490), (40, 249992), (64, 156245), (80, 124996), (160, 62498), (320, 31249)]