20429920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 192

約数和(自身を含む): 62052480

約数和(自身を除く): 41622560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 29, 32, 34, 35, 37, 40, 56, 58, 68, 70, 74, 80, 85, 112, 116, 119, 136, 140, 145, 148, 160, 170, 185, 203, 224, 232, 238, 259, 272, 280, 290, 296, 340, 370, 406, 464, 476, 493, 518, 544, 560, 580, 592, 595, 629, 680, 740, 812, 928, 952, 986, 1015, 1036, 1073, 1120, 1160, 1184, 1190, 1258, 1295, 1360, 1480, 1624, 1904, 1972, 2030, 2072, 2146, 2320, 2380, 2465, 2516, 2590, 2720, 2960, 3145, 3248, 3451, 3808, 3944, 4060, 4144, 4292, 4403, 4640, 4760, 4930, 5032, 5180, 5365, 5920, 6290, 6496, 6902, 7511, 7888, 8120, 8288, 8584, 8806, 9520, 9860, 10064, 10360, 10730, 12580, 13804, 15022, 15776, 16240, 17168, 17255, 17612, 18241, 19040, 19720, 20128, 20720, 21460, 22015, 25160, 27608, 30044, 32480, 34336, 34510, 35224, 36482, 37555, 39440, 41440, 42920, 44030, 50320, 55216, 60088, 69020, 70448, 72964, 75110, 78880, 85840, 88060, 91205, 100640, 110432, 120176, 127687, 138040, 140896, 145928, 150220, 171680, 176120, 182410, 240352, 255374, 276080, 291856, 300440, 352240, 364820, 510748, 552160, 583712, 600880, 638435, 704480, 729640, 1021496, 1201760, 1276870, 1459280, 2042992, 2553740, 2918560, 4085984, 5107480, 10214960, 20429920]

約数ペア:

[(1, 20429920), (2, 10214960), (4, 5107480), (5, 4085984), (7, 2918560), (8, 2553740), (10, 2042992), (14, 1459280), (16, 1276870), (17, 1201760), (20, 1021496), (28, 729640), (29, 704480), (32, 638435), (34, 600880), (35, 583712), (37, 552160), (40, 510748), (56, 364820), (58, 352240), (68, 300440), (70, 291856), (74, 276080), (80, 255374), (85, 240352), (112, 182410), (116, 176120), (119, 171680), (136, 150220), (140, 145928), (145, 140896), (148, 138040), (160, 127687), (170, 120176), (185, 110432), (203, 100640), (224, 91205), (232, 88060), (238, 85840), (259, 78880), (272, 75110), (280, 72964), (290, 70448), (296, 69020), (340, 60088), (370, 55216), (406, 50320), (464, 44030), (476, 42920), (493, 41440), (518, 39440), (544, 37555), (560, 36482), (580, 35224), (592, 34510), (595, 34336), (629, 32480), (680, 30044), (740, 27608), (812, 25160), (928, 22015), (952, 21460), (986, 20720), (1015, 20128), (1036, 19720), (1073, 19040), (1120, 18241), (1160, 17612), (1184, 17255), (1190, 17168), (1258, 16240), (1295, 15776), (1360, 15022), (1480, 13804), (1624, 12580), (1904, 10730), (1972, 10360), (2030, 10064), (2072, 9860), (2146, 9520), (2320, 8806), (2380, 8584), (2465, 8288), (2516, 8120), (2590, 7888), (2720, 7511), (2960, 6902), (3145, 6496), (3248, 6290), (3451, 5920), (3808, 5365), (3944, 5180), (4060, 5032), (4144, 4930), (4292, 4760), (4403, 4640)]