55640360

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{409}}^1$

素因数の和:618

約数の個数: 64

約数和(自身を含む): 132840000

約数和(自身を除く): 77199640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 179, 190, 358, 380, 409, 716, 760, 818, 895, 1432, 1636, 1790, 2045, 3272, 3401, 3580, 4090, 6802, 7160, 7771, 8180, 13604, 15542, 16360, 17005, 27208, 31084, 34010, 38855, 62168, 68020, 73211, 77710, 136040, 146422, 155420, 292844, 310840, 366055, 585688, 732110, 1391009, 1464220, 2782018, 2928440, 5564036, 6955045, 11128072, 13910090, 27820180, 55640360]

約数ペア:

[(1, 55640360), (2, 27820180), (4, 13910090), (5, 11128072), (8, 6955045), (10, 5564036), (19, 2928440), (20, 2782018), (38, 1464220), (40, 1391009), (76, 732110), (95, 585688), (152, 366055), (179, 310840), (190, 292844), (358, 155420), (380, 146422), (409, 136040), (716, 77710), (760, 73211), (818, 68020), (895, 62168), (1432, 38855), (1636, 34010), (1790, 31084), (2045, 27208), (3272, 17005), (3401, 16360), (3580, 15542), (4090, 13604), (6802, 8180), (7160, 7771)]