128429456

素因数分解:

$2^4\times {\mathrm{379}}^1\times {\mathrm{21179}}^1$

素因数の和:21566

約数の個数: 20

約数和(自身を含む): 249500400

約数和(自身を除く): 121070944

約数列:

[1, 2, 4, 8, 16, 379, 758, 1516, 3032, 6064, 21179, 42358, 84716, 169432, 338864, 8026841, 16053682, 32107364, 64214728, 128429456]

約数ペア:

[(1, 128429456), (2, 64214728), (4, 32107364), (8, 16053682), (16, 8026841), (379, 338864), (758, 169432), (1516, 84716), (3032, 42358), (6064, 21179)]