78821680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3433}}^1$

素因数の和:3494

約数の個数: 80

約数和(自身を含む): 214611264

約数和(自身を除く): 135789584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 41, 56, 70, 80, 82, 112, 140, 164, 205, 280, 287, 328, 410, 560, 574, 656, 820, 1148, 1435, 1640, 2296, 2870, 3280, 3433, 4592, 5740, 6866, 11480, 13732, 17165, 22960, 24031, 27464, 34330, 48062, 54928, 68660, 96124, 120155, 137320, 140753, 192248, 240310, 274640, 281506, 384496, 480620, 563012, 703765, 961240, 985271, 1126024, 1407530, 1922480, 1970542, 2252048, 2815060, 3941084, 4926355, 5630120, 7882168, 9852710, 11260240, 15764336, 19705420, 39410840, 78821680]

約数ペア:

[(1, 78821680), (2, 39410840), (4, 19705420), (5, 15764336), (7, 11260240), (8, 9852710), (10, 7882168), (14, 5630120), (16, 4926355), (20, 3941084), (28, 2815060), (35, 2252048), (40, 1970542), (41, 1922480), (56, 1407530), (70, 1126024), (80, 985271), (82, 961240), (112, 703765), (140, 563012), (164, 480620), (205, 384496), (280, 281506), (287, 274640), (328, 240310), (410, 192248), (560, 140753), (574, 137320), (656, 120155), (820, 96124), (1148, 68660), (1435, 54928), (1640, 48062), (2296, 34330), (2870, 27464), (3280, 24031), (3433, 22960), (4592, 17165), (5740, 13732), (6866, 11480)]