31900072

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 61380000

約数和(自身を除く): 29479928

約数列:

[1, 2, 4, 8, 61, 122, 131, 244, 262, 488, 499, 524, 998, 1048, 1996, 3992, 7991, 15982, 30439, 31964, 60878, 63928, 65369, 121756, 130738, 243512, 261476, 522952, 3987509, 7975018, 15950036, 31900072]

約数ペア:

[(1, 31900072), (2, 15950036), (4, 7975018), (8, 3987509), (61, 522952), (122, 261476), (131, 243512), (244, 130738), (262, 121756), (488, 65369), (499, 63928), (524, 60878), (998, 31964), (1048, 30439), (1996, 15982), (3992, 7991)]