19329340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 43394400

約数和(自身を除く): 24065060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 409, 556, 695, 818, 1390, 1636, 2045, 2363, 2780, 4090, 4726, 6953, 8180, 9452, 11815, 13906, 23630, 27812, 34765, 47260, 56851, 69530, 113702, 139060, 227404, 284255, 568510, 966467, 1137020, 1932934, 3865868, 4832335, 9664670, 19329340]

約数ペア:

[(1, 19329340), (2, 9664670), (4, 4832335), (5, 3865868), (10, 1932934), (17, 1137020), (20, 966467), (34, 568510), (68, 284255), (85, 227404), (139, 139060), (170, 113702), (278, 69530), (340, 56851), (409, 47260), (556, 34765), (695, 27812), (818, 23630), (1390, 13906), (1636, 11815), (2045, 9452), (2363, 8180), (2780, 6953), (4090, 4726)]