28718640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{39887}}^1$

素因数の和:39906

約数の個数: 60

約数和(自身を含む): 96449184

約数和(自身を除く): 67730544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 39887, 79774, 119661, 159548, 199435, 239322, 319096, 358983, 398870, 478644, 598305, 638192, 717966, 797740, 957288, 1196610, 1435932, 1595480, 1794915, 1914576, 2393220, 2871864, 3190960, 3589830, 4786440, 5743728, 7179660, 9572880, 14359320, 28718640]

約数ペア:

[(1, 28718640), (2, 14359320), (3, 9572880), (4, 7179660), (5, 5743728), (6, 4786440), (8, 3589830), (9, 3190960), (10, 2871864), (12, 2393220), (15, 1914576), (16, 1794915), (18, 1595480), (20, 1435932), (24, 1196610), (30, 957288), (36, 797740), (40, 717966), (45, 638192), (48, 598305), (60, 478644), (72, 398870), (80, 358983), (90, 319096), (120, 239322), (144, 199435), (180, 159548), (240, 119661), (360, 79774), (720, 39887)]