30440840

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1987}}^1$

素因数の和:2381

約数の個数: 32

約数和(自身を含む): 68705280

約数和(自身を除く): 38264440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 1987, 3064, 3830, 3974, 7660, 7948, 9935, 15320, 15896, 19870, 39740, 79480, 761021, 1522042, 3044084, 3805105, 6088168, 7610210, 15220420, 30440840]

約数ペア:

[(1, 30440840), (2, 15220420), (4, 7610210), (5, 6088168), (8, 3805105), (10, 3044084), (20, 1522042), (40, 761021), (383, 79480), (766, 39740), (1532, 19870), (1915, 15896), (1987, 15320), (3064, 9935), (3830, 7948), (3974, 7660)]