203140905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{72421}}^1$

素因数の和:72457

約数の個数: 32

約数和(自身を含む): 375435648

約数和(自身を除く): 172294743

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 72421, 217263, 362105, 796631, 1086315, 1231157, 2389893, 3693471, 3983155, 6155785, 11949465, 13542727, 18467355, 40628181, 67713635, 203140905]

約数ペア:

[(1, 203140905), (3, 67713635), (5, 40628181), (11, 18467355), (15, 13542727), (17, 11949465), (33, 6155785), (51, 3983155), (55, 3693471), (85, 2389893), (165, 1231157), (187, 1086315), (255, 796631), (561, 362105), (935, 217263), (2805, 72421)]