13888880

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1249}}^1$

素因数の和:1401

約数の個数: 40

約数和(自身を含む): 32550000

約数和(自身を除く): 18661120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1249, 1390, 2224, 2498, 2780, 4996, 5560, 6245, 9992, 11120, 12490, 19984, 24980, 49960, 99920, 173611, 347222, 694444, 868055, 1388888, 1736110, 2777776, 3472220, 6944440, 13888880]

約数ペア:

[(1, 13888880), (2, 6944440), (4, 3472220), (5, 2777776), (8, 1736110), (10, 1388888), (16, 868055), (20, 694444), (40, 347222), (80, 173611), (139, 99920), (278, 49960), (556, 24980), (695, 19984), (1112, 12490), (1249, 11120), (1390, 9992), (2224, 6245), (2498, 5560), (2780, 4996)]