123840495

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{17987}}^1$

素因数の和:18021

約数の個数: 40

約数和(自身を含む): 235067184

約数和(自身を除く): 111226689

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 6885, 17987, 53961, 89935, 161883, 269805, 305779, 485649, 809415, 917337, 1456947, 1528895, 2428245, 2752011, 4586685, 7284735, 8256033, 13760055, 24768099, 41280165, 123840495]

約数ペア:

[(1, 123840495), (3, 41280165), (5, 24768099), (9, 13760055), (15, 8256033), (17, 7284735), (27, 4586685), (45, 2752011), (51, 2428245), (81, 1528895), (85, 1456947), (135, 917337), (153, 809415), (255, 485649), (405, 305779), (459, 269805), (765, 161883), (1377, 89935), (2295, 53961), (6885, 17987)]