20298312720

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{191783}}^1$

素因数の和:191819

約数の個数: 240

約数和(自身を含む): 81331758720

約数和(自身を除く): 61033446000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 168, 180, 189, 196, 210, 216, 240, 245, 252, 270, 280, 294, 315, 336, 360, 378, 392, 420, 432, 441, 490, 504, 540, 560, 588, 630, 720, 735, 756, 784, 840, 882, 945, 980, 1008, 1080, 1176, 1260, 1323, 1470, 1512, 1680, 1764, 1890, 1960, 2160, 2205, 2352, 2520, 2646, 2940, 3024, 3528, 3780, 3920, 4410, 5040, 5292, 5880, 6615, 7056, 7560, 8820, 10584, 11760, 13230, 15120, 17640, 21168, 26460, 35280, 52920, 105840, 191783, 383566, 575349, 767132, 958915, 1150698, 1342481, 1534264, 1726047, 1917830, 2301396, 2684962, 2876745, 3068528, 3452094, 3835660, 4027443, 4602792, 5178141, 5369924, 5753490, 6712405, 6904188, 7671320, 8054886, 8630235, 9205584, 9397367, 10356282, 10739848, 11506980, 12082329, 13424810, 13808376, 15342640, 16109772, 17260470, 18794734, 20137215, 20712564, 21479696, 23013960, 24164658, 25890705, 26849620, 27616752, 28192101, 32219544, 34520940, 36246987, 37589468, 40274430, 41425128, 46027920, 46986835, 48329316, 51781410, 53699240, 56384202, 60411645, 64439088, 69041880, 72493974, 75178936, 80548860, 82850256, 84576303, 93973670, 96658632, 103562820, 107398480, 112768404, 120823290, 138083760, 140960505, 144987948, 150357872, 161097720, 169152606, 181234935, 187947340, 193317264, 207125640, 225536808, 241646580, 253728909, 281921010, 289975896, 322195440, 338305212, 362469870, 375894680, 414251280, 422881515, 451073616, 483293160, 507457818, 563842020, 579951792, 676610424, 724939740, 751789360, 845763030, 966586320, 1014915636, 1127684040, 1268644545, 1353220848, 1449879480, 1691526060, 2029831272, 2255368080, 2537289090, 2899758960, 3383052120, 4059662544, 5074578180, 6766104240, 10149156360, 20298312720]

約数ペア:

[(1, 20298312720), (2, 10149156360), (3, 6766104240), (4, 5074578180), (5, 4059662544), (6, 3383052120), (7, 2899758960), (8, 2537289090), (9, 2255368080), (10, 2029831272), (12, 1691526060), (14, 1449879480), (15, 1353220848), (16, 1268644545), (18, 1127684040), (20, 1014915636), (21, 966586320), (24, 845763030), (27, 751789360), (28, 724939740), (30, 676610424), (35, 579951792), (36, 563842020), (40, 507457818), (42, 483293160), (45, 451073616), (48, 422881515), (49, 414251280), (54, 375894680), (56, 362469870), (60, 338305212), (63, 322195440), (70, 289975896), (72, 281921010), (80, 253728909), (84, 241646580), (90, 225536808), (98, 207125640), (105, 193317264), (108, 187947340), (112, 181234935), (120, 169152606), (126, 161097720), (135, 150357872), (140, 144987948), (144, 140960505), (147, 138083760), (168, 120823290), (180, 112768404), (189, 107398480), (196, 103562820), (210, 96658632), (216, 93973670), (240, 84576303), (245, 82850256), (252, 80548860), (270, 75178936), (280, 72493974), (294, 69041880), (315, 64439088), (336, 60411645), (360, 56384202), (378, 53699240), (392, 51781410), (420, 48329316), (432, 46986835), (441, 46027920), (490, 41425128), (504, 40274430), (540, 37589468), (560, 36246987), (588, 34520940), (630, 32219544), (720, 28192101), (735, 27616752), (756, 26849620), (784, 25890705), (840, 24164658), (882, 23013960), (945, 21479696), (980, 20712564), (1008, 20137215), (1080, 18794734), (1176, 17260470), (1260, 16109772), (1323, 15342640), (1470, 13808376), (1512, 13424810), (1680, 12082329), (1764, 11506980), (1890, 10739848), (1960, 10356282), (2160, 9397367), (2205, 9205584), (2352, 8630235), (2520, 8054886), (2646, 7671320), (2940, 6904188), (3024, 6712405), (3528, 5753490), (3780, 5369924), (3920, 5178141), (4410, 4602792), (5040, 4027443), (5292, 3835660), (5880, 3452094), (6615, 3068528), (7056, 2876745), (7560, 2684962), (8820, 2301396), (10584, 1917830), (11760, 1726047), (13230, 1534264), (15120, 1342481), (17640, 1150698), (21168, 958915), (26460, 767132), (35280, 575349), (52920, 383566), (105840, 191783)]