278681985

素因数分解:

$3^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{9257}}^1$

素因数の和:9494

約数の個数: 32

約数和(自身を含む): 497710080

約数和(自身を除く): 219028095

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 223, 669, 1115, 2007, 3345, 6021, 9257, 10035, 27771, 30105, 46285, 83313, 138855, 249939, 416565, 1249695, 2064311, 6192933, 10321555, 18578799, 30964665, 55736397, 92893995, 278681985]

約数ペア:

[(1, 278681985), (3, 92893995), (5, 55736397), (9, 30964665), (15, 18578799), (27, 10321555), (45, 6192933), (135, 2064311), (223, 1249695), (669, 416565), (1115, 249939), (2007, 138855), (3345, 83313), (6021, 46285), (9257, 30105), (10035, 27771)]