90871235

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 138430656

約数和(自身を除く): 47559421

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 103, 245, 277, 455, 515, 637, 721, 1339, 1385, 1939, 3185, 3601, 3605, 5047, 6695, 9373, 9695, 13573, 18005, 25207, 25235, 28531, 46865, 65611, 67865, 126035, 142655, 176449, 199717, 328055, 370903, 882245, 998585, 1398019, 1854515, 2596321, 6990095, 12981605, 18174247, 90871235]

約数ペア:

[(1, 90871235), (5, 18174247), (7, 12981605), (13, 6990095), (35, 2596321), (49, 1854515), (65, 1398019), (91, 998585), (103, 882245), (245, 370903), (277, 328055), (455, 199717), (515, 176449), (637, 142655), (721, 126035), (1339, 67865), (1385, 65611), (1939, 46865), (3185, 28531), (3601, 25235), (3605, 25207), (5047, 18005), (6695, 13573), (9373, 9695)]