13987000

素因数分解:

$2^3\times 5^3\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 33359040

約数和(自身を除く): 19372040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 71, 100, 125, 142, 197, 200, 250, 284, 355, 394, 500, 568, 710, 788, 985, 1000, 1420, 1576, 1775, 1970, 2840, 3550, 3940, 4925, 7100, 7880, 8875, 9850, 13987, 14200, 17750, 19700, 24625, 27974, 35500, 39400, 49250, 55948, 69935, 71000, 98500, 111896, 139870, 197000, 279740, 349675, 559480, 699350, 1398700, 1748375, 2797400, 3496750, 6993500, 13987000]

約数ペア:

[(1, 13987000), (2, 6993500), (4, 3496750), (5, 2797400), (8, 1748375), (10, 1398700), (20, 699350), (25, 559480), (40, 349675), (50, 279740), (71, 197000), (100, 139870), (125, 111896), (142, 98500), (197, 71000), (200, 69935), (250, 55948), (284, 49250), (355, 39400), (394, 35500), (500, 27974), (568, 24625), (710, 19700), (788, 17750), (985, 14200), (1000, 13987), (1420, 9850), (1576, 8875), (1775, 7880), (1970, 7100), (2840, 4925), (3550, 3940)]