20196288720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{72109}}^1$

素因数の和:72517

約数の個数: 120

約数和(自身を含む): 68001172200

約数和(自身を除く): 47804883480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 389, 720, 778, 1167, 1556, 1945, 2334, 3112, 3501, 3890, 4668, 5835, 6224, 7002, 7780, 9336, 11670, 14004, 15560, 17505, 18672, 23340, 28008, 31120, 35010, 46680, 56016, 70020, 72109, 93360, 140040, 144218, 216327, 280080, 288436, 360545, 432654, 576872, 648981, 721090, 865308, 1081635, 1153744, 1297962, 1442180, 1730616, 2163270, 2595924, 2884360, 3244905, 3461232, 4326540, 5191848, 5768720, 6489810, 8653080, 10383696, 12979620, 17306160, 25959240, 28050401, 51918480, 56100802, 84151203, 112201604, 140252005, 168302406, 224403208, 252453609, 280504010, 336604812, 420756015, 448806416, 504907218, 561008020, 673209624, 841512030, 1009814436, 1122016040, 1262268045, 1346419248, 1683024060, 2019628872, 2244032080, 2524536090, 3366048120, 4039257744, 5049072180, 6732096240, 10098144360, 20196288720]

約数ペア:

[(1, 20196288720), (2, 10098144360), (3, 6732096240), (4, 5049072180), (5, 4039257744), (6, 3366048120), (8, 2524536090), (9, 2244032080), (10, 2019628872), (12, 1683024060), (15, 1346419248), (16, 1262268045), (18, 1122016040), (20, 1009814436), (24, 841512030), (30, 673209624), (36, 561008020), (40, 504907218), (45, 448806416), (48, 420756015), (60, 336604812), (72, 280504010), (80, 252453609), (90, 224403208), (120, 168302406), (144, 140252005), (180, 112201604), (240, 84151203), (360, 56100802), (389, 51918480), (720, 28050401), (778, 25959240), (1167, 17306160), (1556, 12979620), (1945, 10383696), (2334, 8653080), (3112, 6489810), (3501, 5768720), (3890, 5191848), (4668, 4326540), (5835, 3461232), (6224, 3244905), (7002, 2884360), (7780, 2595924), (9336, 2163270), (11670, 1730616), (14004, 1442180), (15560, 1297962), (17505, 1153744), (18672, 1081635), (23340, 865308), (28008, 721090), (31120, 648981), (35010, 576872), (46680, 432654), (56016, 360545), (70020, 288436), (72109, 280080), (93360, 216327), (140040, 144218)]