81972045

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1291}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 152373312

約数和(自身を除く): 70401267

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 83, 85, 153, 249, 255, 415, 747, 765, 1245, 1291, 1411, 3735, 3873, 4233, 6455, 7055, 11619, 12699, 19365, 21165, 21947, 58095, 63495, 65841, 107153, 109735, 197523, 321459, 329205, 535765, 964377, 987615, 1607295, 1821601, 4821885, 5464803, 9108005, 16394409, 27324015, 81972045]

約数ペア:

[(1, 81972045), (3, 27324015), (5, 16394409), (9, 9108005), (15, 5464803), (17, 4821885), (45, 1821601), (51, 1607295), (83, 987615), (85, 964377), (153, 535765), (249, 329205), (255, 321459), (415, 197523), (747, 109735), (765, 107153), (1245, 65841), (1291, 63495), (1411, 58095), (3735, 21947), (3873, 21165), (4233, 19365), (6455, 12699), (7055, 11619)]