12638768

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{7247}}^1$

素因数の和:7364

約数の個数: 20

約数和(自身を含む): 24715680

約数和(自身を除く): 12076912

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 7247, 14494, 28988, 57976, 115952, 789923, 1579846, 3159692, 6319384, 12638768]

約数ペア:

[(1, 12638768), (2, 6319384), (4, 3159692), (8, 1579846), (16, 789923), (109, 115952), (218, 57976), (436, 28988), (872, 14494), (1744, 7247)]