20044750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 42254784

約数和(自身を除く): 22210034

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 125, 185, 197, 250, 275, 370, 394, 407, 550, 814, 925, 985, 1375, 1850, 1970, 2035, 2167, 2750, 4070, 4334, 4625, 4925, 7289, 9250, 9850, 10175, 10835, 14578, 20350, 21670, 24625, 36445, 49250, 50875, 54175, 72890, 80179, 101750, 108350, 160358, 182225, 270875, 364450, 400895, 541750, 801790, 911125, 1822250, 2004475, 4008950, 10022375, 20044750]

約数ペア:

[(1, 20044750), (2, 10022375), (5, 4008950), (10, 2004475), (11, 1822250), (22, 911125), (25, 801790), (37, 541750), (50, 400895), (55, 364450), (74, 270875), (110, 182225), (125, 160358), (185, 108350), (197, 101750), (250, 80179), (275, 72890), (370, 54175), (394, 50875), (407, 49250), (550, 36445), (814, 24625), (925, 21670), (985, 20350), (1375, 14578), (1850, 10835), (1970, 10175), (2035, 9850), (2167, 9250), (2750, 7289), (4070, 4925), (4334, 4625)]