640196364728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{3491}}^1\times {\mathrm{1206479}}^1$

素因数の和:1209995

約数の個数: 32

約数和(自身を含む): 1263908448000

約数和(自身を除く): 623712083272

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 3491, 6982, 13964, 27928, 66329, 132658, 265316, 530632, 1206479, 2412958, 4825916, 9651832, 22923101, 45846202, 91692404, 183384808, 4211818189, 8423636378, 16847272756, 33694545512, 80024545591, 160049091182, 320098182364, 640196364728]

約数ペア:

[(1, 640196364728), (2, 320098182364), (4, 160049091182), (8, 80024545591), (19, 33694545512), (38, 16847272756), (76, 8423636378), (152, 4211818189), (3491, 183384808), (6982, 91692404), (13964, 45846202), (27928, 22923101), (66329, 9651832), (132658, 4825916), (265316, 2412958), (530632, 1206479)]