278310765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{4957}}^1$

素因数の和:5181

約数の個数: 32

約数和(自身を含む): 471208320

約数和(自身を除く): 192897555

約数列:

[1, 3, 5, 15, 19, 57, 95, 197, 285, 591, 985, 2955, 3743, 4957, 11229, 14871, 18715, 24785, 56145, 74355, 94183, 282549, 470915, 976529, 1412745, 2929587, 4882645, 14647935, 18554051, 55662153, 92770255, 278310765]

約数ペア:

[(1, 278310765), (3, 92770255), (5, 55662153), (15, 18554051), (19, 14647935), (57, 4882645), (95, 2929587), (197, 1412745), (285, 976529), (591, 470915), (985, 282549), (2955, 94183), (3743, 74355), (4957, 56145), (11229, 24785), (14871, 18715)]