31100972

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 64162560

約数和(自身を除く): 33061588

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 131, 139, 244, 262, 278, 427, 524, 556, 854, 917, 973, 1708, 1834, 1946, 3668, 3892, 7991, 8479, 15982, 16958, 18209, 31964, 33916, 36418, 55937, 59353, 72836, 111874, 118706, 127463, 223748, 237412, 254926, 509852, 1110749, 2221498, 4442996, 7775243, 15550486, 31100972]

約数ペア:

[(1, 31100972), (2, 15550486), (4, 7775243), (7, 4442996), (14, 2221498), (28, 1110749), (61, 509852), (122, 254926), (131, 237412), (139, 223748), (244, 127463), (262, 118706), (278, 111874), (427, 72836), (524, 59353), (556, 55937), (854, 36418), (917, 33916), (973, 31964), (1708, 18209), (1834, 16958), (1946, 15982), (3668, 8479), (3892, 7991)]