16728255

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 32503680

約数和(自身を除く): 15775425

約数列:

[1, 3, 5, 9, 15, 17, 27, 37, 45, 51, 85, 111, 135, 153, 185, 197, 255, 333, 459, 555, 591, 629, 765, 985, 999, 1665, 1773, 1887, 2295, 2955, 3145, 3349, 4995, 5319, 5661, 7289, 8865, 9435, 10047, 16745, 16983, 21867, 26595, 28305, 30141, 36445, 50235, 65601, 84915, 90423, 109335, 123913, 150705, 196803, 328005, 371739, 452115, 619565, 984015, 1115217, 1858695, 3345651, 5576085, 16728255]

約数ペア:

[(1, 16728255), (3, 5576085), (5, 3345651), (9, 1858695), (15, 1115217), (17, 984015), (27, 619565), (37, 452115), (45, 371739), (51, 328005), (85, 196803), (111, 150705), (135, 123913), (153, 109335), (185, 90423), (197, 84915), (255, 65601), (333, 50235), (459, 36445), (555, 30141), (591, 28305), (629, 26595), (765, 21867), (985, 16983), (999, 16745), (1665, 10047), (1773, 9435), (1887, 8865), (2295, 7289), (2955, 5661), (3145, 5319), (3349, 4995)]