257936476

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3539}}^1$

素因数の和:3706

約数の個数: 48

約数和(自身を含む): 547142400

約数和(自身を除く): 289205924

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 137, 266, 274, 532, 548, 959, 1918, 2603, 3539, 3836, 5206, 7078, 10412, 14156, 18221, 24773, 36442, 49546, 67241, 72884, 99092, 134482, 268964, 470687, 484843, 941374, 969686, 1882748, 1939372, 3393901, 6787802, 9212017, 13575604, 18424034, 36848068, 64484119, 128968238, 257936476]

約数ペア:

[(1, 257936476), (2, 128968238), (4, 64484119), (7, 36848068), (14, 18424034), (19, 13575604), (28, 9212017), (38, 6787802), (76, 3393901), (133, 1939372), (137, 1882748), (266, 969686), (274, 941374), (532, 484843), (548, 470687), (959, 268964), (1918, 134482), (2603, 99092), (3539, 72884), (3836, 67241), (5206, 49546), (7078, 36442), (10412, 24773), (14156, 18221)]