17705980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 38840256

約数和(自身を除く): 21134276

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 337, 355, 370, 674, 710, 740, 1348, 1420, 1685, 2627, 3370, 5254, 6740, 10508, 12469, 13135, 23927, 24938, 26270, 47854, 49876, 52540, 62345, 95708, 119635, 124690, 239270, 249380, 478540, 885299, 1770598, 3541196, 4426495, 8852990, 17705980]

約数ペア:

[(1, 17705980), (2, 8852990), (4, 4426495), (5, 3541196), (10, 1770598), (20, 885299), (37, 478540), (71, 249380), (74, 239270), (142, 124690), (148, 119635), (185, 95708), (284, 62345), (337, 52540), (355, 49876), (370, 47854), (674, 26270), (710, 24938), (740, 23927), (1348, 13135), (1420, 12469), (1685, 10508), (2627, 6740), (3370, 5254)]