89178890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{1033}}^1$

素因数の和:1226

約数の個数: 32

約数和(自身を含む): 164157840

約数和(自身を除く): 74978950

約数列:

[1, 2, 5, 10, 89, 97, 178, 194, 445, 485, 890, 970, 1033, 2066, 5165, 8633, 10330, 17266, 43165, 86330, 91937, 100201, 183874, 200402, 459685, 501005, 919370, 1002010, 8917889, 17835778, 44589445, 89178890]

約数ペア:

[(1, 89178890), (2, 44589445), (5, 17835778), (10, 8917889), (89, 1002010), (97, 919370), (178, 501005), (194, 459685), (445, 200402), (485, 183874), (890, 100201), (970, 91937), (1033, 86330), (2066, 43165), (5165, 17266), (8633, 10330)]