81213165

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3217}}^1$

素因数の和:3259

約数の個数: 64

約数和(自身を含む): 166821120

約数和(自身を除く): 85607955

約数列:

[1, 3, 5, 9, 11, 15, 17, 27, 33, 45, 51, 55, 85, 99, 135, 153, 165, 187, 255, 297, 459, 495, 561, 765, 935, 1485, 1683, 2295, 2805, 3217, 5049, 8415, 9651, 16085, 25245, 28953, 35387, 48255, 54689, 86859, 106161, 144765, 164067, 176935, 273445, 318483, 434295, 492201, 530805, 601579, 820335, 955449, 1476603, 1592415, 1804737, 2461005, 3007895, 4777245, 5414211, 7383015, 9023685, 16242633, 27071055, 81213165]

約数ペア:

[(1, 81213165), (3, 27071055), (5, 16242633), (9, 9023685), (11, 7383015), (15, 5414211), (17, 4777245), (27, 3007895), (33, 2461005), (45, 1804737), (51, 1592415), (55, 1476603), (85, 955449), (99, 820335), (135, 601579), (153, 530805), (165, 492201), (187, 434295), (255, 318483), (297, 273445), (459, 176935), (495, 164067), (561, 144765), (765, 106161), (935, 86859), (1485, 54689), (1683, 48255), (2295, 35387), (2805, 28953), (3217, 25245), (5049, 16085), (8415, 9651)]