79948520

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7963}}^1$

素因数の和:8225

約数の個数: 32

約数和(自身を含む): 180623520

約数和(自身を除く): 100675000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 7963, 10040, 15926, 31852, 39815, 63704, 79630, 159260, 318520, 1998713, 3997426, 7994852, 9993565, 15989704, 19987130, 39974260, 79948520]

約数ペア:

[(1, 79948520), (2, 39974260), (4, 19987130), (5, 15989704), (8, 9993565), (10, 7994852), (20, 3997426), (40, 1998713), (251, 318520), (502, 159260), (1004, 79630), (1255, 63704), (2008, 39815), (2510, 31852), (5020, 15926), (7963, 10040)]