399291215876

素因数分解:

$2^2\times 7^3\times {\mathrm{109}}^1\times {\mathrm{2669987}}^1$

素因数の和:2670121

約数の個数: 48

約数和(自身を含む): 822356304000

約数和(自身を除く): 423065088124

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 109, 196, 218, 343, 436, 686, 763, 1372, 1526, 3052, 5341, 10682, 21364, 37387, 74774, 149548, 2669987, 5339974, 10679948, 18689909, 37379818, 74759636, 130829363, 261658726, 291028583, 523317452, 582057166, 915805541, 1164114332, 1831611082, 2037200081, 3663222164, 4074400162, 8148800324, 14260400567, 28520801134, 57041602268, 99822803969, 199645607938, 399291215876]

約数ペア:

[(1, 399291215876), (2, 199645607938), (4, 99822803969), (7, 57041602268), (14, 28520801134), (28, 14260400567), (49, 8148800324), (98, 4074400162), (109, 3663222164), (196, 2037200081), (218, 1831611082), (343, 1164114332), (436, 915805541), (686, 582057166), (763, 523317452), (1372, 291028583), (1526, 261658726), (3052, 130829363), (5341, 74759636), (10682, 37379818), (21364, 18689909), (37387, 10679948), (74774, 5339974), (149548, 2669987)]