201780205

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{197}}^1\times {\mathrm{1693}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 267658776

約数和(自身を除く): 65878571

約数列:

[1, 5, 11, 55, 121, 197, 605, 985, 1693, 2167, 8465, 10835, 18623, 23837, 93115, 119185, 204853, 333521, 1024265, 1667605, 3668731, 18343655, 40356041, 201780205]

約数ペア:

[(1, 201780205), (5, 40356041), (11, 18343655), (55, 3668731), (121, 1667605), (197, 1024265), (605, 333521), (985, 204853), (1693, 119185), (2167, 93115), (8465, 23837), (10835, 18623)]