127789450

素因数分解:

$2^1\times 5^2\times {\mathrm{991}}^1\times {\mathrm{2579}}^1$

素因数の和:3582

約数の個数: 24

約数和(自身を含む): 238020480

約数和(自身を除く): 110231030

約数列:

[1, 2, 5, 10, 25, 50, 991, 1982, 2579, 4955, 5158, 9910, 12895, 24775, 25790, 49550, 64475, 128950, 2555789, 5111578, 12778945, 25557890, 63894725, 127789450]

約数ペア:

[(1, 127789450), (2, 63894725), (5, 25557890), (10, 12778945), (25, 5111578), (50, 2555789), (991, 128950), (1982, 64475), (2579, 49550), (4955, 25790), (5158, 24775), (9910, 12895)]