64761140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78977}}^1$

素因数の和:79027

約数の個数: 24

約数和(自身を含む): 139317192

約数和(自身を除く): 74556052

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 78977, 157954, 315908, 394885, 789770, 1579540, 3238057, 6476114, 12952228, 16190285, 32380570, 64761140]

約数ペア:

[(1, 64761140), (2, 32380570), (4, 16190285), (5, 12952228), (10, 6476114), (20, 3238057), (41, 1579540), (82, 789770), (164, 394885), (205, 315908), (410, 157954), (820, 78977)]