854367620

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{3947}}^1$

素因数の和:4172

約数の個数: 48

約数和(自身を含む): 1830608640

約数和(自身を除く): 976241020

約数列:

[1, 2, 4, 5, 10, 20, 79, 137, 158, 274, 316, 395, 548, 685, 790, 1370, 1580, 2740, 3947, 7894, 10823, 15788, 19735, 21646, 39470, 43292, 54115, 78940, 108230, 216460, 311813, 540739, 623626, 1081478, 1247252, 1559065, 2162956, 2703695, 3118130, 5407390, 6236260, 10814780, 42718381, 85436762, 170873524, 213591905, 427183810, 854367620]

約数ペア:

[(1, 854367620), (2, 427183810), (4, 213591905), (5, 170873524), (10, 85436762), (20, 42718381), (79, 10814780), (137, 6236260), (158, 5407390), (274, 3118130), (316, 2703695), (395, 2162956), (548, 1559065), (685, 1247252), (790, 1081478), (1370, 623626), (1580, 540739), (2740, 311813), (3947, 216460), (7894, 108230), (10823, 78940), (15788, 54115), (19735, 43292), (21646, 39470)]