68891920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27779}}^1$

素因数の和:27823

約数の個数: 40

約数和(自身を含む): 165346560

約数和(自身を除く): 96454640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 27779, 55558, 111116, 138895, 222232, 277790, 444464, 555580, 861149, 1111160, 1722298, 2222320, 3444596, 4305745, 6889192, 8611490, 13778384, 17222980, 34445960, 68891920]

約数ペア:

[(1, 68891920), (2, 34445960), (4, 17222980), (5, 13778384), (8, 8611490), (10, 6889192), (16, 4305745), (20, 3444596), (31, 2222320), (40, 1722298), (62, 1111160), (80, 861149), (124, 555580), (155, 444464), (248, 277790), (310, 222232), (496, 138895), (620, 111116), (1240, 55558), (2480, 27779)]