20651840

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5867}}^1$

素因数の和:5895

約数の個数: 56

約数和(自身を含む): 53656992

約数和(自身を除く): 33005152

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5867, 11734, 23468, 29335, 46936, 58670, 64537, 93872, 117340, 129074, 187744, 234680, 258148, 322685, 375488, 469360, 516296, 645370, 938720, 1032592, 1290740, 1877440, 2065184, 2581480, 4130368, 5162960, 10325920, 20651840]

約数ペア:

[(1, 20651840), (2, 10325920), (4, 5162960), (5, 4130368), (8, 2581480), (10, 2065184), (11, 1877440), (16, 1290740), (20, 1032592), (22, 938720), (32, 645370), (40, 516296), (44, 469360), (55, 375488), (64, 322685), (80, 258148), (88, 234680), (110, 187744), (160, 129074), (176, 117340), (220, 93872), (320, 64537), (352, 58670), (440, 46936), (704, 29335), (880, 23468), (1760, 11734), (3520, 5867)]