255306520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1637}}^1$

素因数の和:2212

約数の個数: 64

約数和(自身を含む): 658082880

約数和(自身を除く): 402776360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 557, 1114, 1637, 2228, 2785, 3274, 3899, 4456, 5570, 6548, 7798, 8185, 11140, 11459, 13096, 15596, 16370, 19495, 22280, 22918, 31192, 32740, 38990, 45836, 57295, 65480, 77980, 91672, 114590, 155960, 229180, 458360, 911809, 1823618, 3647236, 4559045, 6382663, 7294472, 9118090, 12765326, 18236180, 25530652, 31913315, 36472360, 51061304, 63826630, 127653260, 255306520]

約数ペア:

[(1, 255306520), (2, 127653260), (4, 63826630), (5, 51061304), (7, 36472360), (8, 31913315), (10, 25530652), (14, 18236180), (20, 12765326), (28, 9118090), (35, 7294472), (40, 6382663), (56, 4559045), (70, 3647236), (140, 1823618), (280, 911809), (557, 458360), (1114, 229180), (1637, 155960), (2228, 114590), (2785, 91672), (3274, 77980), (3899, 65480), (4456, 57295), (5570, 45836), (6548, 38990), (7798, 32740), (8185, 31192), (11140, 22918), (11459, 22280), (13096, 19495), (15596, 16370)]