28397920

素因数分解:

$2^5\times 5^1\times {\mathrm{177487}}^1$

素因数の和:177502

約数の個数: 24

約数和(自身を含む): 67090464

約数和(自身を除く): 38692544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 177487, 354974, 709948, 887435, 1419896, 1774870, 2839792, 3549740, 5679584, 7099480, 14198960, 28397920]

約数ペア:

[(1, 28397920), (2, 14198960), (4, 7099480), (5, 5679584), (8, 3549740), (10, 2839792), (16, 1774870), (20, 1419896), (32, 887435), (40, 709948), (80, 354974), (160, 177487)]