61891780

素因数分解:

$2^2\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{2741}}^1$

素因数の和:3879

約数の個数: 24

約数和(自身を含む): 130135320

約数和(自身を除く): 68243540

約数列:

[1, 2, 4, 5, 10, 20, 1129, 2258, 2741, 4516, 5482, 5645, 10964, 11290, 13705, 22580, 27410, 54820, 3094589, 6189178, 12378356, 15472945, 30945890, 61891780]

約数ペア:

[(1, 61891780), (2, 30945890), (4, 15472945), (5, 12378356), (10, 6189178), (20, 3094589), (1129, 54820), (2258, 27410), (2741, 22580), (4516, 13705), (5482, 11290), (5645, 10964)]