20907480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 70087680

約数和(自身を除く): 49180200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 47, 55, 60, 66, 88, 94, 110, 120, 132, 141, 165, 188, 220, 235, 264, 282, 330, 337, 376, 440, 470, 517, 564, 660, 674, 705, 940, 1011, 1034, 1128, 1320, 1348, 1410, 1551, 1685, 1880, 2022, 2068, 2585, 2696, 2820, 3102, 3370, 3707, 4044, 4136, 5055, 5170, 5640, 6204, 6740, 7414, 7755, 8088, 10110, 10340, 11121, 12408, 13480, 14828, 15510, 15839, 18535, 20220, 20680, 22242, 29656, 31020, 31678, 37070, 40440, 44484, 47517, 55605, 62040, 63356, 74140, 79195, 88968, 95034, 111210, 126712, 148280, 158390, 174229, 190068, 222420, 237585, 316780, 348458, 380136, 444840, 475170, 522687, 633560, 696916, 871145, 950340, 1045374, 1393832, 1742290, 1900680, 2090748, 2613435, 3484580, 4181496, 5226870, 6969160, 10453740, 20907480]

約数ペア:

[(1, 20907480), (2, 10453740), (3, 6969160), (4, 5226870), (5, 4181496), (6, 3484580), (8, 2613435), (10, 2090748), (11, 1900680), (12, 1742290), (15, 1393832), (20, 1045374), (22, 950340), (24, 871145), (30, 696916), (33, 633560), (40, 522687), (44, 475170), (47, 444840), (55, 380136), (60, 348458), (66, 316780), (88, 237585), (94, 222420), (110, 190068), (120, 174229), (132, 158390), (141, 148280), (165, 126712), (188, 111210), (220, 95034), (235, 88968), (264, 79195), (282, 74140), (330, 63356), (337, 62040), (376, 55605), (440, 47517), (470, 44484), (517, 40440), (564, 37070), (660, 31678), (674, 31020), (705, 29656), (940, 22242), (1011, 20680), (1034, 20220), (1128, 18535), (1320, 15839), (1348, 15510), (1410, 14828), (1551, 13480), (1685, 12408), (1880, 11121), (2022, 10340), (2068, 10110), (2585, 8088), (2696, 7755), (2820, 7414), (3102, 6740), (3370, 6204), (3707, 5640), (4044, 5170), (4136, 5055)]