64820660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{190649}}^1$

素因数の和:190675

約数の個数: 24

約数和(自身を含む): 144131400

約数和(自身を除く): 79310740

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 190649, 381298, 762596, 953245, 1906490, 3241033, 3812980, 6482066, 12964132, 16205165, 32410330, 64820660]

約数ペア:

[(1, 64820660), (2, 32410330), (4, 16205165), (5, 12964132), (10, 6482066), (17, 3812980), (20, 3241033), (34, 1906490), (68, 953245), (85, 762596), (170, 381298), (340, 190649)]