40974128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{196991}}^1$

素因数の和:197012

約数の個数: 20

約数和(自身を含む): 85494528

約数和(自身を除く): 44520400

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 196991, 393982, 787964, 1575928, 2560883, 3151856, 5121766, 10243532, 20487064, 40974128]

約数ペア:

[(1, 40974128), (2, 20487064), (4, 10243532), (8, 5121766), (13, 3151856), (16, 2560883), (26, 1575928), (52, 787964), (104, 393982), (208, 196991)]