128519344

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{422761}}^1$

素因数の和:422788

約数の個数: 20

約数和(自身を含む): 262112440

約数和(自身を除く): 133593096

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 422761, 845522, 1691044, 3382088, 6764176, 8032459, 16064918, 32129836, 64259672, 128519344]

約数ペア:

[(1, 128519344), (2, 64259672), (4, 32129836), (8, 16064918), (16, 8032459), (19, 6764176), (38, 3382088), (76, 1691044), (152, 845522), (304, 422761)]