28105000

素因数分解:

$2^3\times 5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1$

素因数の和:117

約数の個数: 160

約数和(自身を含む): 83223360

約数和(自身を除く): 55118360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 73, 77, 88, 100, 110, 125, 140, 146, 154, 175, 200, 220, 250, 275, 280, 292, 308, 350, 365, 385, 440, 500, 511, 550, 584, 616, 625, 700, 730, 770, 803, 875, 1000, 1022, 1100, 1250, 1375, 1400, 1460, 1540, 1606, 1750, 1825, 1925, 2044, 2200, 2500, 2555, 2750, 2920, 3080, 3212, 3500, 3650, 3850, 4015, 4088, 4375, 5000, 5110, 5500, 5621, 6424, 6875, 7000, 7300, 7700, 8030, 8750, 9125, 9625, 10220, 11000, 11242, 12775, 13750, 14600, 15400, 16060, 17500, 18250, 19250, 20075, 20440, 22484, 25550, 27500, 28105, 32120, 35000, 36500, 38500, 40150, 44968, 45625, 48125, 51100, 55000, 56210, 63875, 73000, 77000, 80300, 91250, 96250, 100375, 102200, 112420, 127750, 140525, 160600, 182500, 192500, 200750, 224840, 255500, 281050, 319375, 365000, 385000, 401500, 501875, 511000, 562100, 638750, 702625, 803000, 1003750, 1124200, 1277500, 1405250, 2007500, 2555000, 2810500, 3513125, 4015000, 5621000, 7026250, 14052500, 28105000]

約数ペア:

[(1, 28105000), (2, 14052500), (4, 7026250), (5, 5621000), (7, 4015000), (8, 3513125), (10, 2810500), (11, 2555000), (14, 2007500), (20, 1405250), (22, 1277500), (25, 1124200), (28, 1003750), (35, 803000), (40, 702625), (44, 638750), (50, 562100), (55, 511000), (56, 501875), (70, 401500), (73, 385000), (77, 365000), (88, 319375), (100, 281050), (110, 255500), (125, 224840), (140, 200750), (146, 192500), (154, 182500), (175, 160600), (200, 140525), (220, 127750), (250, 112420), (275, 102200), (280, 100375), (292, 96250), (308, 91250), (350, 80300), (365, 77000), (385, 73000), (440, 63875), (500, 56210), (511, 55000), (550, 51100), (584, 48125), (616, 45625), (625, 44968), (700, 40150), (730, 38500), (770, 36500), (803, 35000), (875, 32120), (1000, 28105), (1022, 27500), (1100, 25550), (1250, 22484), (1375, 20440), (1400, 20075), (1460, 19250), (1540, 18250), (1606, 17500), (1750, 16060), (1825, 15400), (1925, 14600), (2044, 13750), (2200, 12775), (2500, 11242), (2555, 11000), (2750, 10220), (2920, 9625), (3080, 9125), (3212, 8750), (3500, 8030), (3650, 7700), (3850, 7300), (4015, 7000), (4088, 6875), (4375, 6424), (5000, 5621), (5110, 5500)]