281661520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{2087}}^1$

素因数の和:2348

約数の個数: 80

約数和(自身を含む): 751880448

約数和(自身を除く): 470218928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 241, 280, 482, 560, 964, 1205, 1687, 1928, 2087, 2410, 3374, 3856, 4174, 4820, 6748, 8348, 8435, 9640, 10435, 13496, 14609, 16696, 16870, 19280, 20870, 26992, 29218, 33392, 33740, 41740, 58436, 67480, 73045, 83480, 116872, 134960, 146090, 166960, 233744, 292180, 502967, 584360, 1005934, 1168720, 2011868, 2514835, 3520769, 4023736, 5029670, 7041538, 8047472, 10059340, 14083076, 17603845, 20118680, 28166152, 35207690, 40237360, 56332304, 70415380, 140830760, 281661520]

約数ペア:

[(1, 281661520), (2, 140830760), (4, 70415380), (5, 56332304), (7, 40237360), (8, 35207690), (10, 28166152), (14, 20118680), (16, 17603845), (20, 14083076), (28, 10059340), (35, 8047472), (40, 7041538), (56, 5029670), (70, 4023736), (80, 3520769), (112, 2514835), (140, 2011868), (241, 1168720), (280, 1005934), (482, 584360), (560, 502967), (964, 292180), (1205, 233744), (1687, 166960), (1928, 146090), (2087, 134960), (2410, 116872), (3374, 83480), (3856, 73045), (4174, 67480), (4820, 58436), (6748, 41740), (8348, 33740), (8435, 33392), (9640, 29218), (10435, 26992), (13496, 20870), (14609, 19280), (16696, 16870)]