64686650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{439}}^1$

素因数の和:879

約数の個数: 48

約数和(自身を含む): 138145920

約数和(自身を除く): 73459270

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 421, 439, 842, 878, 2105, 2195, 2947, 3073, 4210, 4390, 5894, 6146, 10525, 10975, 14735, 15365, 21050, 21950, 29470, 30730, 73675, 76825, 147350, 153650, 184819, 369638, 924095, 1293733, 1848190, 2587466, 4620475, 6468665, 9240950, 12937330, 32343325, 64686650]

約数ペア:

[(1, 64686650), (2, 32343325), (5, 12937330), (7, 9240950), (10, 6468665), (14, 4620475), (25, 2587466), (35, 1848190), (50, 1293733), (70, 924095), (175, 369638), (350, 184819), (421, 153650), (439, 147350), (842, 76825), (878, 73675), (2105, 30730), (2195, 29470), (2947, 21950), (3073, 21050), (4210, 15365), (4390, 14735), (5894, 10975), (6146, 10525)]