13210225

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 20534400

約数和(自身を除く): 7324175

約数列:

[1, 5, 7, 19, 25, 29, 35, 95, 133, 137, 145, 175, 203, 475, 551, 665, 685, 725, 959, 1015, 2603, 2755, 3325, 3425, 3857, 3973, 4795, 5075, 13015, 13775, 18221, 19285, 19865, 23975, 27811, 65075, 75487, 91105, 96425, 99325, 139055, 377435, 455525, 528409, 695275, 1887175, 2642045, 13210225]

約数ペア:

[(1, 13210225), (5, 2642045), (7, 1887175), (19, 695275), (25, 528409), (29, 455525), (35, 377435), (95, 139055), (133, 99325), (137, 96425), (145, 91105), (175, 75487), (203, 65075), (475, 27811), (551, 23975), (665, 19865), (685, 19285), (725, 18221), (959, 13775), (1015, 13015), (2603, 5075), (2755, 4795), (3325, 3973), (3425, 3857)]