81977216

素因数分解:

$2^7\times {\mathrm{197}}^1\times {\mathrm{3251}}^1$

素因数の和:3462

約数の個数: 32

約数和(自身を含む): 164193480

約数和(自身を除く): 82216264

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 197, 394, 788, 1576, 3152, 3251, 6304, 6502, 12608, 13004, 25216, 26008, 52016, 104032, 208064, 416128, 640447, 1280894, 2561788, 5123576, 10247152, 20494304, 40988608, 81977216]

約数ペア:

[(1, 81977216), (2, 40988608), (4, 20494304), (8, 10247152), (16, 5123576), (32, 2561788), (64, 1280894), (128, 640447), (197, 416128), (394, 208064), (788, 104032), (1576, 52016), (3152, 26008), (3251, 25216), (6304, 13004), (6502, 12608)]