28220085

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{997}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 53245296

約数和(自身を除く): 25025211

約数列:

[1, 3, 5, 9, 15, 17, 37, 45, 51, 85, 111, 153, 185, 255, 333, 555, 629, 765, 997, 1665, 1887, 2991, 3145, 4985, 5661, 8973, 9435, 14955, 16949, 28305, 36889, 44865, 50847, 84745, 110667, 152541, 184445, 254235, 332001, 553335, 627113, 762705, 1660005, 1881339, 3135565, 5644017, 9406695, 28220085]

約数ペア:

[(1, 28220085), (3, 9406695), (5, 5644017), (9, 3135565), (15, 1881339), (17, 1660005), (37, 762705), (45, 627113), (51, 553335), (85, 332001), (111, 254235), (153, 184445), (185, 152541), (255, 110667), (333, 84745), (555, 50847), (629, 44865), (765, 36889), (997, 28305), (1665, 16949), (1887, 14955), (2991, 9435), (3145, 8973), (4985, 5661)]