128957280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{268661}}^1$

素因数の和:268679

約数の個数: 48

約数和(自身を含む): 406216944

約数和(自身を除く): 277259664

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 268661, 537322, 805983, 1074644, 1343305, 1611966, 2149288, 2686610, 3223932, 4029915, 4298576, 5373220, 6447864, 8059830, 8597152, 10746440, 12895728, 16119660, 21492880, 25791456, 32239320, 42985760, 64478640, 128957280]

約数ペア:

[(1, 128957280), (2, 64478640), (3, 42985760), (4, 32239320), (5, 25791456), (6, 21492880), (8, 16119660), (10, 12895728), (12, 10746440), (15, 8597152), (16, 8059830), (20, 6447864), (24, 5373220), (30, 4298576), (32, 4029915), (40, 3223932), (48, 2686610), (60, 2149288), (80, 1611966), (96, 1343305), (120, 1074644), (160, 805983), (240, 537322), (480, 268661)]