280772492

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{70123}}^1$

素因数の和:70158

約数の個数: 48

約数和(自身を含む): 659726592

約数和(自身を除く): 378954100

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 70123, 140246, 280492, 490861, 771353, 911599, 981722, 1542706, 1823198, 1963444, 3085412, 3646396, 5399471, 6381193, 10027589, 10798942, 12762386, 20055178, 21597884, 25524772, 40110356, 70193123, 140386246, 280772492]

約数ペア:

[(1, 280772492), (2, 140386246), (4, 70193123), (7, 40110356), (11, 25524772), (13, 21597884), (14, 20055178), (22, 12762386), (26, 10798942), (28, 10027589), (44, 6381193), (52, 5399471), (77, 3646396), (91, 3085412), (143, 1963444), (154, 1823198), (182, 1542706), (286, 981722), (308, 911599), (364, 771353), (572, 490861), (1001, 280492), (2002, 140246), (4004, 70123)]