71978620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10939}}^1$

素因数の和:11002

約数の個数: 48

約数和(自身を含む): 176440320

約数和(自身を除く): 104461700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 10939, 21878, 43756, 54695, 76573, 109390, 153146, 218780, 306292, 382865, 514133, 765730, 1028266, 1531460, 2056532, 2570665, 3598931, 5141330, 7197862, 10282660, 14395724, 17994655, 35989310, 71978620]

約数ペア:

[(1, 71978620), (2, 35989310), (4, 17994655), (5, 14395724), (7, 10282660), (10, 7197862), (14, 5141330), (20, 3598931), (28, 2570665), (35, 2056532), (47, 1531460), (70, 1028266), (94, 765730), (140, 514133), (188, 382865), (235, 306292), (329, 218780), (470, 153146), (658, 109390), (940, 76573), (1316, 54695), (1645, 43756), (3290, 21878), (6580, 10939)]