78768140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21061}}^1$

素因数の和:21098

約数の個数: 48

約数和(自身を含む): 191074464

約数和(自身を除く): 112306324

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 21061, 42122, 84244, 105305, 210610, 231671, 358037, 421220, 463342, 716074, 926684, 1158355, 1432148, 1790185, 2316710, 3580370, 3938407, 4633420, 7160740, 7876814, 15753628, 19692035, 39384070, 78768140]

約数ペア:

[(1, 78768140), (2, 39384070), (4, 19692035), (5, 15753628), (10, 7876814), (11, 7160740), (17, 4633420), (20, 3938407), (22, 3580370), (34, 2316710), (44, 1790185), (55, 1432148), (68, 1158355), (85, 926684), (110, 716074), (170, 463342), (187, 421220), (220, 358037), (340, 231671), (374, 210610), (748, 105305), (935, 84244), (1870, 42122), (3740, 21061)]