31129000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{4447}}^1$

素因数の和:4475

約数の個数: 64

約数和(自身を含む): 83266560

約数和(自身を除く): 52137560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 3500, 4447, 7000, 8894, 17788, 22235, 31129, 35576, 44470, 62258, 88940, 111175, 124516, 155645, 177880, 222350, 249032, 311290, 444700, 555875, 622580, 778225, 889400, 1111750, 1245160, 1556450, 2223500, 3112900, 3891125, 4447000, 6225800, 7782250, 15564500, 31129000]

約数ペア:

[(1, 31129000), (2, 15564500), (4, 7782250), (5, 6225800), (7, 4447000), (8, 3891125), (10, 3112900), (14, 2223500), (20, 1556450), (25, 1245160), (28, 1111750), (35, 889400), (40, 778225), (50, 622580), (56, 555875), (70, 444700), (100, 311290), (125, 249032), (140, 222350), (175, 177880), (200, 155645), (250, 124516), (280, 111175), (350, 88940), (500, 62258), (700, 44470), (875, 35576), (1000, 31129), (1400, 22235), (1750, 17788), (3500, 8894), (4447, 7000)]