20428250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{1993}}^1$

素因数の和:2051

約数の個数: 32

約数和(自身を含む): 39194064

約数和(自身を除く): 18765814

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 1025, 1993, 2050, 3986, 5125, 9965, 10250, 19930, 49825, 81713, 99650, 163426, 249125, 408565, 498250, 817130, 2042825, 4085650, 10214125, 20428250]

約数ペア:

[(1, 20428250), (2, 10214125), (5, 4085650), (10, 2042825), (25, 817130), (41, 498250), (50, 408565), (82, 249125), (125, 163426), (205, 99650), (250, 81713), (410, 49825), (1025, 19930), (1993, 10250), (2050, 9965), (3986, 5125)]