20512142640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{235447}}^1$

素因数の和:235488

約数の個数: 180

約数和(自身を含む): 75718664112

約数和(自身を除く): 55206521472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 121, 132, 144, 165, 176, 180, 198, 220, 240, 242, 264, 330, 360, 363, 396, 440, 484, 495, 528, 605, 660, 720, 726, 792, 880, 968, 990, 1089, 1210, 1320, 1452, 1584, 1815, 1936, 1980, 2178, 2420, 2640, 2904, 3630, 3960, 4356, 4840, 5445, 5808, 7260, 7920, 8712, 9680, 10890, 14520, 17424, 21780, 29040, 43560, 87120, 235447, 470894, 706341, 941788, 1177235, 1412682, 1883576, 2119023, 2354470, 2589917, 2825364, 3531705, 3767152, 4238046, 4708940, 5179834, 5650728, 7063410, 7769751, 8476092, 9417880, 10359668, 10595115, 11301456, 12949585, 14126820, 15539502, 16952184, 18835760, 20719336, 21190230, 23309253, 25899170, 28253640, 28489087, 31079004, 33904368, 38848755, 41438672, 42380460, 46618506, 51798340, 56507280, 56978174, 62158008, 77697510, 84760920, 85467261, 93237012, 103596680, 113956348, 116546265, 124316016, 142445435, 155395020, 169521840, 170934522, 186474024, 207193360, 227912696, 233092530, 256401783, 284890870, 310790040, 341869044, 372948048, 427336305, 455825392, 466185060, 512803566, 569781740, 621580080, 683738088, 854672610, 932370120, 1025607132, 1139563480, 1282008915, 1367476176, 1709345220, 1864740240, 2051214264, 2279126960, 2564017830, 3418690440, 4102428528, 5128035660, 6837380880, 10256071320, 20512142640]

約数ペア:

[(1, 20512142640), (2, 10256071320), (3, 6837380880), (4, 5128035660), (5, 4102428528), (6, 3418690440), (8, 2564017830), (9, 2279126960), (10, 2051214264), (11, 1864740240), (12, 1709345220), (15, 1367476176), (16, 1282008915), (18, 1139563480), (20, 1025607132), (22, 932370120), (24, 854672610), (30, 683738088), (33, 621580080), (36, 569781740), (40, 512803566), (44, 466185060), (45, 455825392), (48, 427336305), (55, 372948048), (60, 341869044), (66, 310790040), (72, 284890870), (80, 256401783), (88, 233092530), (90, 227912696), (99, 207193360), (110, 186474024), (120, 170934522), (121, 169521840), (132, 155395020), (144, 142445435), (165, 124316016), (176, 116546265), (180, 113956348), (198, 103596680), (220, 93237012), (240, 85467261), (242, 84760920), (264, 77697510), (330, 62158008), (360, 56978174), (363, 56507280), (396, 51798340), (440, 46618506), (484, 42380460), (495, 41438672), (528, 38848755), (605, 33904368), (660, 31079004), (720, 28489087), (726, 28253640), (792, 25899170), (880, 23309253), (968, 21190230), (990, 20719336), (1089, 18835760), (1210, 16952184), (1320, 15539502), (1452, 14126820), (1584, 12949585), (1815, 11301456), (1936, 10595115), (1980, 10359668), (2178, 9417880), (2420, 8476092), (2640, 7769751), (2904, 7063410), (3630, 5650728), (3960, 5179834), (4356, 4708940), (4840, 4238046), (5445, 3767152), (5808, 3531705), (7260, 2825364), (7920, 2589917), (8712, 2354470), (9680, 2119023), (10890, 1883576), (14520, 1412682), (17424, 1177235), (21780, 941788), (29040, 706341), (43560, 470894), (87120, 235447)]