278045380

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{937}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 601813296

約数和(自身を除く): 323767916

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 401, 740, 802, 937, 1604, 1874, 2005, 3748, 4010, 4685, 8020, 9370, 14837, 18740, 29674, 34669, 59348, 69338, 74185, 138676, 148370, 173345, 296740, 346690, 375737, 693380, 751474, 1502948, 1878685, 3757370, 7514740, 13902269, 27804538, 55609076, 69511345, 139022690, 278045380]

約数ペア:

[(1, 278045380), (2, 139022690), (4, 69511345), (5, 55609076), (10, 27804538), (20, 13902269), (37, 7514740), (74, 3757370), (148, 1878685), (185, 1502948), (370, 751474), (401, 693380), (740, 375737), (802, 346690), (937, 296740), (1604, 173345), (1874, 148370), (2005, 138676), (3748, 74185), (4010, 69338), (4685, 59348), (8020, 34669), (9370, 29674), (14837, 18740)]