278246260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{7109}}^1$

素因数の和:7240

約数の個数: 48

約数和(自身を含む): 621129600

約数和(自身を除く): 342883340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1957, 2060, 3914, 7109, 7828, 9785, 14218, 19570, 28436, 35545, 39140, 71090, 135071, 142180, 270142, 540284, 675355, 732227, 1350710, 1464454, 2701420, 2928908, 3661135, 7322270, 13912313, 14644540, 27824626, 55649252, 69561565, 139123130, 278246260]

約数ペア:

[(1, 278246260), (2, 139123130), (4, 69561565), (5, 55649252), (10, 27824626), (19, 14644540), (20, 13912313), (38, 7322270), (76, 3661135), (95, 2928908), (103, 2701420), (190, 1464454), (206, 1350710), (380, 732227), (412, 675355), (515, 540284), (1030, 270142), (1957, 142180), (2060, 135071), (3914, 71090), (7109, 39140), (7828, 35545), (9785, 28436), (14218, 19570)]