71381375

素因数分解:

$5^3\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 48

約数和(自身を含む): 100488960

約数和(自身を除く): 29107585

約数列:

[1, 5, 13, 25, 31, 65, 109, 125, 155, 169, 325, 403, 545, 775, 845, 1417, 1625, 2015, 2725, 3379, 3875, 4225, 5239, 7085, 10075, 13625, 16895, 18421, 21125, 26195, 35425, 43927, 50375, 84475, 92105, 130975, 177125, 219635, 422375, 460525, 571051, 654875, 1098175, 2302625, 2855255, 5490875, 14276275, 71381375]

約数ペア:

[(1, 71381375), (5, 14276275), (13, 5490875), (25, 2855255), (31, 2302625), (65, 1098175), (109, 654875), (125, 571051), (155, 460525), (169, 422375), (325, 219635), (403, 177125), (545, 130975), (775, 92105), (845, 84475), (1417, 50375), (1625, 43927), (2015, 35425), (2725, 26195), (3379, 21125), (3875, 18421), (4225, 16895), (5239, 13625), (7085, 10075)]