20319544

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{739}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 43689600

約数和(自身を除く): 23370056

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 739, 982, 1478, 1964, 2956, 3437, 3928, 5173, 5912, 6874, 10346, 13748, 20692, 27496, 41384, 362849, 725698, 1451396, 2539943, 2902792, 5079886, 10159772, 20319544]

約数ペア:

[(1, 20319544), (2, 10159772), (4, 5079886), (7, 2902792), (8, 2539943), (14, 1451396), (28, 725698), (56, 362849), (491, 41384), (739, 27496), (982, 20692), (1478, 13748), (1964, 10346), (2956, 6874), (3437, 5912), (3928, 5173)]