72890000

素因数分解:

$2^4\times 5^4\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 100

約数和(自身を含む): 182163564

約数和(自身を除く): 109273564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 37, 40, 50, 74, 80, 100, 125, 148, 185, 197, 200, 250, 296, 370, 394, 400, 500, 592, 625, 740, 788, 925, 985, 1000, 1250, 1480, 1576, 1850, 1970, 2000, 2500, 2960, 3152, 3700, 3940, 4625, 4925, 5000, 7289, 7400, 7880, 9250, 9850, 10000, 14578, 14800, 15760, 18500, 19700, 23125, 24625, 29156, 36445, 37000, 39400, 46250, 49250, 58312, 72890, 74000, 78800, 92500, 98500, 116624, 123125, 145780, 182225, 185000, 197000, 246250, 291560, 364450, 370000, 394000, 492500, 583120, 728900, 911125, 985000, 1457800, 1822250, 1970000, 2915600, 3644500, 4555625, 7289000, 9111250, 14578000, 18222500, 36445000, 72890000]

約数ペア:

[(1, 72890000), (2, 36445000), (4, 18222500), (5, 14578000), (8, 9111250), (10, 7289000), (16, 4555625), (20, 3644500), (25, 2915600), (37, 1970000), (40, 1822250), (50, 1457800), (74, 985000), (80, 911125), (100, 728900), (125, 583120), (148, 492500), (185, 394000), (197, 370000), (200, 364450), (250, 291560), (296, 246250), (370, 197000), (394, 185000), (400, 182225), (500, 145780), (592, 123125), (625, 116624), (740, 98500), (788, 92500), (925, 78800), (985, 74000), (1000, 72890), (1250, 58312), (1480, 49250), (1576, 46250), (1850, 39400), (1970, 37000), (2000, 36445), (2500, 29156), (2960, 24625), (3152, 23125), (3700, 19700), (3940, 18500), (4625, 15760), (4925, 14800), (5000, 14578), (7289, 10000), (7400, 9850), (7880, 9250)]