66885440

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1061}}^1$

素因数の和:1275

約数の個数: 56

約数和(自身を含む): 160230312

約数和(自身を除く): 93344872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1061, 1576, 1970, 2122, 3152, 3940, 4244, 5305, 6304, 7880, 8488, 10610, 12608, 15760, 16976, 21220, 31520, 33952, 42440, 63040, 67904, 84880, 169760, 209017, 339520, 418034, 836068, 1045085, 1672136, 2090170, 3344272, 4180340, 6688544, 8360680, 13377088, 16721360, 33442720, 66885440]

約数ペア:

[(1, 66885440), (2, 33442720), (4, 16721360), (5, 13377088), (8, 8360680), (10, 6688544), (16, 4180340), (20, 3344272), (32, 2090170), (40, 1672136), (64, 1045085), (80, 836068), (160, 418034), (197, 339520), (320, 209017), (394, 169760), (788, 84880), (985, 67904), (1061, 63040), (1576, 42440), (1970, 33952), (2122, 31520), (3152, 21220), (3940, 16976), (4244, 15760), (5305, 12608), (6304, 10610), (7880, 8488)]