20755500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:260

約数の個数: 96

約数和(自身を含む): 61483968

約数和(自身を除く): 40728468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 101, 125, 137, 150, 202, 250, 274, 300, 303, 375, 404, 411, 500, 505, 548, 606, 685, 750, 822, 1010, 1212, 1370, 1500, 1515, 1644, 2020, 2055, 2525, 2740, 3030, 3425, 4110, 5050, 6060, 6850, 7575, 8220, 10100, 10275, 12625, 13700, 13837, 15150, 17125, 20550, 25250, 27674, 30300, 34250, 37875, 41100, 41511, 50500, 51375, 55348, 68500, 69185, 75750, 83022, 102750, 138370, 151500, 166044, 205500, 207555, 276740, 345925, 415110, 691850, 830220, 1037775, 1383700, 1729625, 2075550, 3459250, 4151100, 5188875, 6918500, 10377750, 20755500]

約数ペア:

[(1, 20755500), (2, 10377750), (3, 6918500), (4, 5188875), (5, 4151100), (6, 3459250), (10, 2075550), (12, 1729625), (15, 1383700), (20, 1037775), (25, 830220), (30, 691850), (50, 415110), (60, 345925), (75, 276740), (100, 207555), (101, 205500), (125, 166044), (137, 151500), (150, 138370), (202, 102750), (250, 83022), (274, 75750), (300, 69185), (303, 68500), (375, 55348), (404, 51375), (411, 50500), (500, 41511), (505, 41100), (548, 37875), (606, 34250), (685, 30300), (750, 27674), (822, 25250), (1010, 20550), (1212, 17125), (1370, 15150), (1500, 13837), (1515, 13700), (1644, 12625), (2020, 10275), (2055, 10100), (2525, 8220), (2740, 7575), (3030, 6850), (3425, 6060), (4110, 5050)]