20404500720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1\times {\mathrm{2801}}^1$

素因数の和:3183

約数の個数: 160

約数和(自身を含む): 64041615360

約数和(自身を除く): 43637114640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 239, 240, 254, 381, 478, 508, 635, 717, 762, 956, 1016, 1195, 1270, 1434, 1524, 1905, 1912, 2032, 2390, 2540, 2801, 2868, 3048, 3585, 3810, 3824, 4780, 5080, 5602, 5736, 6096, 7170, 7620, 8403, 9560, 10160, 11204, 11472, 14005, 14340, 15240, 16806, 19120, 22408, 28010, 28680, 30353, 30480, 33612, 42015, 44816, 56020, 57360, 60706, 67224, 84030, 91059, 112040, 121412, 134448, 151765, 168060, 182118, 224080, 242824, 303530, 336120, 355727, 364236, 455295, 485648, 607060, 669439, 672240, 711454, 728472, 910590, 1067181, 1214120, 1338878, 1422908, 1456944, 1778635, 1821180, 2008317, 2134362, 2428240, 2677756, 2845816, 3347195, 3557270, 3642360, 4016634, 4268724, 5335905, 5355512, 5691632, 6694390, 7114540, 7284720, 8033268, 8537448, 10041585, 10671810, 10711024, 13388780, 14229080, 16066536, 17074896, 20083170, 21343620, 26777560, 28458160, 32133072, 40166340, 42687240, 53555120, 80332680, 85018753, 85374480, 160665360, 170037506, 255056259, 340075012, 425093765, 510112518, 680150024, 850187530, 1020225036, 1275281295, 1360300048, 1700375060, 2040450072, 2550562590, 3400750120, 4080900144, 5101125180, 6801500240, 10202250360, 20404500720]

約数ペア:

[(1, 20404500720), (2, 10202250360), (3, 6801500240), (4, 5101125180), (5, 4080900144), (6, 3400750120), (8, 2550562590), (10, 2040450072), (12, 1700375060), (15, 1360300048), (16, 1275281295), (20, 1020225036), (24, 850187530), (30, 680150024), (40, 510112518), (48, 425093765), (60, 340075012), (80, 255056259), (120, 170037506), (127, 160665360), (239, 85374480), (240, 85018753), (254, 80332680), (381, 53555120), (478, 42687240), (508, 40166340), (635, 32133072), (717, 28458160), (762, 26777560), (956, 21343620), (1016, 20083170), (1195, 17074896), (1270, 16066536), (1434, 14229080), (1524, 13388780), (1905, 10711024), (1912, 10671810), (2032, 10041585), (2390, 8537448), (2540, 8033268), (2801, 7284720), (2868, 7114540), (3048, 6694390), (3585, 5691632), (3810, 5355512), (3824, 5335905), (4780, 4268724), (5080, 4016634), (5602, 3642360), (5736, 3557270), (6096, 3347195), (7170, 2845816), (7620, 2677756), (8403, 2428240), (9560, 2134362), (10160, 2008317), (11204, 1821180), (11472, 1778635), (14005, 1456944), (14340, 1422908), (15240, 1338878), (16806, 1214120), (19120, 1067181), (22408, 910590), (28010, 728472), (28680, 711454), (30353, 672240), (30480, 669439), (33612, 607060), (42015, 485648), (44816, 455295), (56020, 364236), (57360, 355727), (60706, 336120), (67224, 303530), (84030, 242824), (91059, 224080), (112040, 182118), (121412, 168060), (134448, 151765)]