51861355

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 82162080

約数和(自身を除く): 30300725

約数列:

[1, 5, 7, 13, 19, 35, 49, 65, 91, 95, 133, 245, 247, 455, 637, 665, 857, 931, 1235, 1729, 3185, 4285, 4655, 5999, 8645, 11141, 12103, 16283, 29995, 41993, 55705, 60515, 77987, 81415, 113981, 209965, 211679, 389935, 545909, 569905, 797867, 1058395, 1481753, 2729545, 3989335, 7408765, 10372271, 51861355]

約数ペア:

[(1, 51861355), (5, 10372271), (7, 7408765), (13, 3989335), (19, 2729545), (35, 1481753), (49, 1058395), (65, 797867), (91, 569905), (95, 545909), (133, 389935), (245, 211679), (247, 209965), (455, 113981), (637, 81415), (665, 77987), (857, 60515), (931, 55705), (1235, 41993), (1729, 29995), (3185, 16283), (4285, 12103), (4655, 11141), (5999, 8645)]