201991460728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{1328891189}}^1$

素因数の和:1328891214

約数の個数: 16

約数和(自身を含む): 398667357000

約数和(自身を除く): 196675896272

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 1328891189, 2657782378, 5315564756, 10631129512, 25248932591, 50497865182, 100995730364, 201991460728]

約数ペア:

[(1, 201991460728), (2, 100995730364), (4, 50497865182), (8, 25248932591), (19, 10631129512), (38, 5315564756), (76, 2657782378), (152, 1328891189)]