20205280

素因数分解:

$2^5\times 5^1\times {\mathrm{293}}^1\times {\mathrm{431}}^1$

素因数の和:739

約数の個数: 48

約数和(自身を含む): 48009024

約数和(自身を除く): 27803744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 293, 431, 586, 862, 1172, 1465, 1724, 2155, 2344, 2930, 3448, 4310, 4688, 5860, 6896, 8620, 9376, 11720, 13792, 17240, 23440, 34480, 46880, 68960, 126283, 252566, 505132, 631415, 1010264, 1262830, 2020528, 2525660, 4041056, 5051320, 10102640, 20205280]

約数ペア:

[(1, 20205280), (2, 10102640), (4, 5051320), (5, 4041056), (8, 2525660), (10, 2020528), (16, 1262830), (20, 1010264), (32, 631415), (40, 505132), (80, 252566), (160, 126283), (293, 68960), (431, 46880), (586, 34480), (862, 23440), (1172, 17240), (1465, 13792), (1724, 11720), (2155, 9376), (2344, 8620), (2930, 6896), (3448, 5860), (4310, 4688)]