19869160

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1979}}^1$

素因数の和:2241

約数の個数: 32

約数和(自身を含む): 44906400

約数和(自身を除く): 25037240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 1979, 2008, 2510, 3958, 5020, 7916, 9895, 10040, 15832, 19790, 39580, 79160, 496729, 993458, 1986916, 2483645, 3973832, 4967290, 9934580, 19869160]

約数ペア:

[(1, 19869160), (2, 9934580), (4, 4967290), (5, 3973832), (8, 2483645), (10, 1986916), (20, 993458), (40, 496729), (251, 79160), (502, 39580), (1004, 19790), (1255, 15832), (1979, 10040), (2008, 9895), (2510, 7916), (3958, 5020)]