64771400

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^2\times {\mathrm{337}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 156069810

約数和(自身を除く): 91298410

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 337, 620, 674, 775, 961, 1240, 1348, 1550, 1685, 1922, 2696, 3100, 3370, 3844, 4805, 6200, 6740, 7688, 8425, 9610, 10447, 13480, 16850, 19220, 20894, 24025, 33700, 38440, 41788, 48050, 52235, 67400, 83576, 96100, 104470, 192200, 208940, 261175, 323857, 417880, 522350, 647714, 1044700, 1295428, 1619285, 2089400, 2590856, 3238570, 6477140, 8096425, 12954280, 16192850, 32385700, 64771400]

約数ペア:

[(1, 64771400), (2, 32385700), (4, 16192850), (5, 12954280), (8, 8096425), (10, 6477140), (20, 3238570), (25, 2590856), (31, 2089400), (40, 1619285), (50, 1295428), (62, 1044700), (100, 647714), (124, 522350), (155, 417880), (200, 323857), (248, 261175), (310, 208940), (337, 192200), (620, 104470), (674, 96100), (775, 83576), (961, 67400), (1240, 52235), (1348, 48050), (1550, 41788), (1685, 38440), (1922, 33700), (2696, 24025), (3100, 20894), (3370, 19220), (3844, 16850), (4805, 13480), (6200, 10447), (6740, 9610), (7688, 8425)]