8017900

素因数分解:

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

素因数の和:259

約数の個数: 72

約数和(自身を含む): 19592496

約数和(自身を除く): 11574596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 110, 148, 185, 197, 220, 275, 370, 394, 407, 550, 740, 788, 814, 925, 985, 1100, 1628, 1850, 1970, 2035, 2167, 3700, 3940, 4070, 4334, 4925, 7289, 8140, 8668, 9850, 10175, 10835, 14578, 19700, 20350, 21670, 29156, 36445, 40700, 43340, 54175, 72890, 80179, 108350, 145780, 160358, 182225, 216700, 320716, 364450, 400895, 728900, 801790, 1603580, 2004475, 4008950, 8017900]

約数ペア:

[(1, 8017900), (2, 4008950), (4, 2004475), (5, 1603580), (10, 801790), (11, 728900), (20, 400895), (22, 364450), (25, 320716), (37, 216700), (44, 182225), (50, 160358), (55, 145780), (74, 108350), (100, 80179), (110, 72890), (148, 54175), (185, 43340), (197, 40700), (220, 36445), (275, 29156), (370, 21670), (394, 20350), (407, 19700), (550, 14578), (740, 10835), (788, 10175), (814, 9850), (925, 8668), (985, 8140), (1100, 7289), (1628, 4925), (1850, 4334), (1970, 4070), (2035, 3940), (2167, 3700)]