128195249

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{479}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 168376320

約数和(自身を除く): 40181071

約数列:

[1, 7, 13, 17, 91, 119, 173, 221, 479, 1211, 1547, 2249, 2941, 3353, 6227, 8143, 15743, 20587, 38233, 43589, 57001, 82867, 105859, 267631, 580069, 741013, 1077271, 1408739, 7540897, 9861173, 18313607, 128195249]

約数ペア:

[(1, 128195249), (7, 18313607), (13, 9861173), (17, 7540897), (91, 1408739), (119, 1077271), (173, 741013), (221, 580069), (479, 267631), (1211, 105859), (1547, 82867), (2249, 57001), (2941, 43589), (3353, 38233), (6227, 20587), (8143, 15743)]