19161025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 8962175

約数列:

[1, 5, 13, 19, 25, 29, 65, 95, 107, 145, 247, 325, 377, 475, 535, 551, 725, 1235, 1391, 1885, 2033, 2675, 2755, 3103, 6175, 6955, 7163, 9425, 10165, 13775, 15515, 26429, 34775, 35815, 40339, 50825, 58957, 77575, 132145, 179075, 201695, 294785, 660725, 766441, 1008475, 1473925, 3832205, 19161025]

約数ペア:

[(1, 19161025), (5, 3832205), (13, 1473925), (19, 1008475), (25, 766441), (29, 660725), (65, 294785), (95, 201695), (107, 179075), (145, 132145), (247, 77575), (325, 58957), (377, 50825), (475, 40339), (535, 35815), (551, 34775), (725, 26429), (1235, 15515), (1391, 13775), (1885, 10165), (2033, 9425), (2675, 7163), (2755, 6955), (3103, 6175)]