17278220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1109}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 39160800

約数和(自身を除く): 21882580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1109, 1558, 2218, 3116, 3895, 4436, 5545, 7790, 11090, 15580, 21071, 22180, 42142, 45469, 84284, 90938, 105355, 181876, 210710, 227345, 421420, 454690, 863911, 909380, 1727822, 3455644, 4319555, 8639110, 17278220]

約数ペア:

[(1, 17278220), (2, 8639110), (4, 4319555), (5, 3455644), (10, 1727822), (19, 909380), (20, 863911), (38, 454690), (41, 421420), (76, 227345), (82, 210710), (95, 181876), (164, 105355), (190, 90938), (205, 84284), (380, 45469), (410, 42142), (779, 22180), (820, 21071), (1109, 15580), (1558, 11090), (2218, 7790), (3116, 5545), (3895, 4436)]