64818620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{613}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 144825408

約数和(自身を除く): 80006788

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 311, 340, 613, 622, 1226, 1244, 1555, 2452, 3065, 3110, 5287, 6130, 6220, 10421, 10574, 12260, 20842, 21148, 26435, 41684, 52105, 52870, 104210, 105740, 190643, 208420, 381286, 762572, 953215, 1906430, 3240931, 3812860, 6481862, 12963724, 16204655, 32409310, 64818620]

約数ペア:

[(1, 64818620), (2, 32409310), (4, 16204655), (5, 12963724), (10, 6481862), (17, 3812860), (20, 3240931), (34, 1906430), (68, 953215), (85, 762572), (170, 381286), (311, 208420), (340, 190643), (613, 105740), (622, 104210), (1226, 52870), (1244, 52105), (1555, 41684), (2452, 26435), (3065, 21148), (3110, 20842), (5287, 12260), (6130, 10574), (6220, 10421)]