278324930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{6353}}^1$

素因数の和:6710

約数の個数: 32

約数和(自身を含む): 541208304

約数和(自身を除く): 262883374

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 337, 674, 1685, 3370, 4381, 6353, 8762, 12706, 21905, 31765, 43810, 63530, 82589, 165178, 412945, 825890, 2140961, 4281922, 10704805, 21409610, 27832493, 55664986, 139162465, 278324930]

約数ペア:

[(1, 278324930), (2, 139162465), (5, 55664986), (10, 27832493), (13, 21409610), (26, 10704805), (65, 4281922), (130, 2140961), (337, 825890), (674, 412945), (1685, 165178), (3370, 82589), (4381, 63530), (6353, 43810), (8762, 31765), (12706, 21905)]