128974456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1240139}}^1$

素因数の和:1240158

約数の個数: 16

約数和(自身を含む): 260429400

約数和(自身を除く): 131454944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1240139, 2480278, 4960556, 9921112, 16121807, 32243614, 64487228, 128974456]

約数ペア:

[(1, 128974456), (2, 64487228), (4, 32243614), (8, 16121807), (13, 9921112), (26, 4960556), (52, 2480278), (104, 1240139)]