31212665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{7993}}^1$

素因数の和:8080

約数の個数: 16

約数和(自身を含む): 41440896

約数和(自身を除く): 10228231

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 7993, 39965, 87923, 439615, 567503, 2837515, 6242533, 31212665]

約数ペア:

[(1, 31212665), (5, 6242533), (11, 2837515), (55, 567503), (71, 439615), (355, 87923), (781, 39965), (3905, 7993)]