201425408

素因数分解:

$2^9\times {\mathrm{197}}^1\times {\mathrm{1997}}^1$

素因数の和:2212

約数の個数: 40

約数和(自身を含む): 404702892

約数和(自身を除く): 203277484

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 197, 256, 394, 512, 788, 1576, 1997, 3152, 3994, 6304, 7988, 12608, 15976, 25216, 31952, 50432, 63904, 100864, 127808, 255616, 393409, 511232, 786818, 1022464, 1573636, 3147272, 6294544, 12589088, 25178176, 50356352, 100712704, 201425408]

約数ペア:

[(1, 201425408), (2, 100712704), (4, 50356352), (8, 25178176), (16, 12589088), (32, 6294544), (64, 3147272), (128, 1573636), (197, 1022464), (256, 786818), (394, 511232), (512, 393409), (788, 255616), (1576, 127808), (1997, 100864), (3152, 63904), (3994, 50432), (6304, 31952), (7988, 25216), (12608, 15976)]