81386325

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{12473}}^1$

素因数の和:12518

約数の個数: 36

約数和(自身を含む): 150810660

約数和(自身を除く): 69424335

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 12473, 37419, 62365, 112257, 187095, 311825, 361717, 561285, 935475, 1085151, 1808585, 2806425, 3255453, 5425755, 9042925, 16277265, 27128775, 81386325]

約数ペア:

[(1, 81386325), (3, 27128775), (5, 16277265), (9, 9042925), (15, 5425755), (25, 3255453), (29, 2806425), (45, 1808585), (75, 1085151), (87, 935475), (145, 561285), (225, 361717), (261, 311825), (435, 187095), (725, 112257), (1305, 62365), (2175, 37419), (6525, 12473)]