131277328

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{90163}}^1$

素因数の和:90191

約数の個数: 40

約数和(自身を含む): 313049408

約数和(自身を除く): 181772080

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 90163, 180326, 360652, 631141, 721304, 1172119, 1262282, 1442608, 2344238, 2524564, 4688476, 5049128, 8204833, 9376952, 10098256, 16409666, 18753904, 32819332, 65638664, 131277328]

約数ペア:

[(1, 131277328), (2, 65638664), (4, 32819332), (7, 18753904), (8, 16409666), (13, 10098256), (14, 9376952), (16, 8204833), (26, 5049128), (28, 4688476), (52, 2524564), (56, 2344238), (91, 1442608), (104, 1262282), (112, 1172119), (182, 721304), (208, 631141), (364, 360652), (728, 180326), (1456, 90163)]