20791750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{109}}^2$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 44894304

約数和(自身を除く): 24102554

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 109, 125, 175, 218, 250, 350, 545, 763, 875, 1090, 1526, 1750, 2725, 3815, 5450, 7630, 11881, 13625, 19075, 23762, 27250, 38150, 59405, 83167, 95375, 118810, 166334, 190750, 297025, 415835, 594050, 831670, 1485125, 2079175, 2970250, 4158350, 10395875, 20791750]

約数ペア:

[(1, 20791750), (2, 10395875), (5, 4158350), (7, 2970250), (10, 2079175), (14, 1485125), (25, 831670), (35, 594050), (50, 415835), (70, 297025), (109, 190750), (125, 166334), (175, 118810), (218, 95375), (250, 83167), (350, 59405), (545, 38150), (763, 27250), (875, 23762), (1090, 19075), (1526, 13625), (1750, 11881), (2725, 7630), (3815, 5450)]