395878185

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42499}}^1$

素因数の和:42539

約数の個数: 40

約数和(自身を含む): 740520000

約数和(自身を除く): 344641815

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 9315, 42499, 127497, 212495, 382491, 637485, 977477, 1147473, 1912455, 2932431, 3442419, 4887385, 5737365, 8797293, 14662155, 17212095, 26391879, 43986465, 79175637, 131959395, 395878185]

約数ペア:

[(1, 395878185), (3, 131959395), (5, 79175637), (9, 43986465), (15, 26391879), (23, 17212095), (27, 14662155), (45, 8797293), (69, 5737365), (81, 4887385), (115, 3442419), (135, 2932431), (207, 1912455), (345, 1147473), (405, 977477), (621, 637485), (1035, 382491), (1863, 212495), (3105, 127497), (9315, 42499)]