20888280

素因数分解:

$2^3\times 3^5\times 5^1\times 7^1\times {\mathrm{307}}^1$

素因数の和:340

約数の個数: 192

約数和(自身を含む): 80720640

約数和(自身を除く): 59832360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 81, 84, 90, 105, 108, 120, 126, 135, 140, 162, 168, 180, 189, 210, 216, 243, 252, 270, 280, 307, 315, 324, 360, 378, 405, 420, 486, 504, 540, 567, 614, 630, 648, 756, 810, 840, 921, 945, 972, 1080, 1134, 1215, 1228, 1260, 1512, 1535, 1620, 1701, 1842, 1890, 1944, 2149, 2268, 2430, 2456, 2520, 2763, 2835, 3070, 3240, 3402, 3684, 3780, 4298, 4536, 4605, 4860, 5526, 5670, 6140, 6447, 6804, 7368, 7560, 8289, 8505, 8596, 9210, 9720, 10745, 11052, 11340, 12280, 12894, 13608, 13815, 16578, 17010, 17192, 18420, 19341, 21490, 22104, 22680, 24867, 25788, 27630, 32235, 33156, 34020, 36840, 38682, 41445, 42980, 49734, 51576, 55260, 58023, 64470, 66312, 68040, 74601, 77364, 82890, 85960, 96705, 99468, 110520, 116046, 124335, 128940, 149202, 154728, 165780, 174069, 193410, 198936, 232092, 248670, 257880, 290115, 298404, 331560, 348138, 373005, 386820, 464184, 497340, 522207, 580230, 596808, 696276, 746010, 773640, 870345, 994680, 1044414, 1160460, 1392552, 1492020, 1740690, 2088828, 2320920, 2611035, 2984040, 3481380, 4177656, 5222070, 6962760, 10444140, 20888280]

約数ペア:

[(1, 20888280), (2, 10444140), (3, 6962760), (4, 5222070), (5, 4177656), (6, 3481380), (7, 2984040), (8, 2611035), (9, 2320920), (10, 2088828), (12, 1740690), (14, 1492020), (15, 1392552), (18, 1160460), (20, 1044414), (21, 994680), (24, 870345), (27, 773640), (28, 746010), (30, 696276), (35, 596808), (36, 580230), (40, 522207), (42, 497340), (45, 464184), (54, 386820), (56, 373005), (60, 348138), (63, 331560), (70, 298404), (72, 290115), (81, 257880), (84, 248670), (90, 232092), (105, 198936), (108, 193410), (120, 174069), (126, 165780), (135, 154728), (140, 149202), (162, 128940), (168, 124335), (180, 116046), (189, 110520), (210, 99468), (216, 96705), (243, 85960), (252, 82890), (270, 77364), (280, 74601), (307, 68040), (315, 66312), (324, 64470), (360, 58023), (378, 55260), (405, 51576), (420, 49734), (486, 42980), (504, 41445), (540, 38682), (567, 36840), (614, 34020), (630, 33156), (648, 32235), (756, 27630), (810, 25788), (840, 24867), (921, 22680), (945, 22104), (972, 21490), (1080, 19341), (1134, 18420), (1215, 17192), (1228, 17010), (1260, 16578), (1512, 13815), (1535, 13608), (1620, 12894), (1701, 12280), (1842, 11340), (1890, 11052), (1944, 10745), (2149, 9720), (2268, 9210), (2430, 8596), (2456, 8505), (2520, 8289), (2763, 7560), (2835, 7368), (3070, 6804), (3240, 6447), (3402, 6140), (3684, 5670), (3780, 5526), (4298, 4860), (4536, 4605)]