27820180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 61992000

約数和(自身を除く): 34171820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 409, 716, 818, 895, 1636, 1790, 2045, 3401, 3580, 4090, 6802, 7771, 8180, 13604, 15542, 17005, 31084, 34010, 38855, 68020, 73211, 77710, 146422, 155420, 292844, 366055, 732110, 1391009, 1464220, 2782018, 5564036, 6955045, 13910090, 27820180]

約数ペア:

[(1, 27820180), (2, 13910090), (4, 6955045), (5, 5564036), (10, 2782018), (19, 1464220), (20, 1391009), (38, 732110), (76, 366055), (95, 292844), (179, 155420), (190, 146422), (358, 77710), (380, 73211), (409, 68020), (716, 38855), (818, 34010), (895, 31084), (1636, 17005), (1790, 15542), (2045, 13604), (3401, 8180), (3580, 7771), (4090, 6802)]