64453640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39301}}^1$

素因数の和:39353

約数の個数: 32

約数和(自身を含む): 148561560

約数和(自身を除く): 84107920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39301, 78602, 157204, 196505, 314408, 393010, 786020, 1572040, 1611341, 3222682, 6445364, 8056705, 12890728, 16113410, 32226820, 64453640]

約数ペア:

[(1, 64453640), (2, 32226820), (4, 16113410), (5, 12890728), (8, 8056705), (10, 6445364), (20, 3222682), (40, 1611341), (41, 1572040), (82, 786020), (164, 393010), (205, 314408), (328, 196505), (410, 157204), (820, 78602), (1640, 39301)]