397865920

素因数分解:

$2^6\times 5^1\times {\mathrm{547}}^1\times {\mathrm{2273}}^1$

素因数の和:2837

約数の個数: 56

約数和(自身を含む): 949567824

約数和(自身を除く): 551701904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 547, 1094, 2188, 2273, 2735, 4376, 4546, 5470, 8752, 9092, 10940, 11365, 17504, 18184, 21880, 22730, 35008, 36368, 43760, 45460, 72736, 87520, 90920, 145472, 175040, 181840, 363680, 727360, 1243331, 2486662, 4973324, 6216655, 9946648, 12433310, 19893296, 24866620, 39786592, 49733240, 79573184, 99466480, 198932960, 397865920]

約数ペア:

[(1, 397865920), (2, 198932960), (4, 99466480), (5, 79573184), (8, 49733240), (10, 39786592), (16, 24866620), (20, 19893296), (32, 12433310), (40, 9946648), (64, 6216655), (80, 4973324), (160, 2486662), (320, 1243331), (547, 727360), (1094, 363680), (2188, 181840), (2273, 175040), (2735, 145472), (4376, 90920), (4546, 87520), (5470, 72736), (8752, 45460), (9092, 43760), (10940, 36368), (11365, 35008), (17504, 22730), (18184, 21880)]