20740856

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{136453}}^1$

素因数の和:136478

約数の個数: 16

約数和(自身を含む): 40936200

約数和(自身を除く): 20195344

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 136453, 272906, 545812, 1091624, 2592607, 5185214, 10370428, 20740856]

約数ペア:

[(1, 20740856), (2, 10370428), (4, 5185214), (8, 2592607), (19, 1091624), (38, 545812), (76, 272906), (152, 136453)]