16221520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:452

約数の個数: 80

約数和(自身を含む): 43747200

約数和(自身を除く): 27525680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 349, 415, 560, 581, 664, 698, 830, 1162, 1328, 1396, 1660, 1745, 2324, 2443, 2792, 2905, 3320, 3490, 4648, 4886, 5584, 5810, 6640, 6980, 9296, 9772, 11620, 12215, 13960, 19544, 23240, 24430, 27920, 28967, 39088, 46480, 48860, 57934, 97720, 115868, 144835, 195440, 202769, 231736, 289670, 405538, 463472, 579340, 811076, 1013845, 1158680, 1622152, 2027690, 2317360, 3244304, 4055380, 8110760, 16221520]

約数ペア:

[(1, 16221520), (2, 8110760), (4, 4055380), (5, 3244304), (7, 2317360), (8, 2027690), (10, 1622152), (14, 1158680), (16, 1013845), (20, 811076), (28, 579340), (35, 463472), (40, 405538), (56, 289670), (70, 231736), (80, 202769), (83, 195440), (112, 144835), (140, 115868), (166, 97720), (280, 57934), (332, 48860), (349, 46480), (415, 39088), (560, 28967), (581, 27920), (664, 24430), (698, 23240), (830, 19544), (1162, 13960), (1328, 12215), (1396, 11620), (1660, 9772), (1745, 9296), (2324, 6980), (2443, 6640), (2792, 5810), (2905, 5584), (3320, 4886), (3490, 4648)]