398840210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{51199}}^1$

素因数の和:51266

約数の個数: 32

約数和(自身を含む): 774144000

約数和(自身を除く): 375303790

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 3895, 7790, 51199, 102398, 255995, 511990, 972781, 1945562, 2099159, 4198318, 4863905, 9727810, 10495795, 20991590, 39884021, 79768042, 199420105, 398840210]

約数ペア:

[(1, 398840210), (2, 199420105), (5, 79768042), (10, 39884021), (19, 20991590), (38, 10495795), (41, 9727810), (82, 4863905), (95, 4198318), (190, 2099159), (205, 1945562), (410, 972781), (779, 511990), (1558, 255995), (3895, 102398), (7790, 51199)]