81019875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 145566720

約数和(自身を除く): 64546845

約数列:

[1, 3, 5, 15, 17, 25, 51, 71, 75, 85, 125, 179, 213, 255, 355, 375, 425, 537, 895, 1065, 1207, 1275, 1775, 2125, 2685, 3043, 3621, 4475, 5325, 6035, 6375, 8875, 9129, 12709, 13425, 15215, 18105, 22375, 26625, 30175, 38127, 45645, 63545, 67125, 76075, 90525, 150875, 190635, 216053, 228225, 317725, 380375, 452625, 648159, 953175, 1080265, 1141125, 1588625, 3240795, 4765875, 5401325, 16203975, 27006625, 81019875]

約数ペア:

[(1, 81019875), (3, 27006625), (5, 16203975), (15, 5401325), (17, 4765875), (25, 3240795), (51, 1588625), (71, 1141125), (75, 1080265), (85, 953175), (125, 648159), (179, 452625), (213, 380375), (255, 317725), (355, 228225), (375, 216053), (425, 190635), (537, 150875), (895, 90525), (1065, 76075), (1207, 67125), (1275, 63545), (1775, 45645), (2125, 38127), (2685, 30175), (3043, 26625), (3621, 22375), (4475, 18105), (5325, 15215), (6035, 13425), (6375, 12709), (8875, 9129)]