81205515

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1051}}^1$

素因数の和:1180

約数の個数: 48

約数和(自身を含む): 150654816

約数和(自身を除く): 69449301

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 101, 153, 255, 303, 505, 765, 909, 1051, 1515, 1717, 3153, 4545, 5151, 5255, 8585, 9459, 15453, 15765, 17867, 25755, 47295, 53601, 77265, 89335, 106151, 160803, 268005, 318453, 530755, 804015, 955359, 1592265, 1804567, 4776795, 5413701, 9022835, 16241103, 27068505, 81205515]

約数ペア:

[(1, 81205515), (3, 27068505), (5, 16241103), (9, 9022835), (15, 5413701), (17, 4776795), (45, 1804567), (51, 1592265), (85, 955359), (101, 804015), (153, 530755), (255, 318453), (303, 268005), (505, 160803), (765, 106151), (909, 89335), (1051, 77265), (1515, 53601), (1717, 47295), (3153, 25755), (4545, 17867), (5151, 15765), (5255, 15453), (8585, 9459)]