128520256

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{105691}}^1$

素因数の和:105722

約数の個数: 28

約数和(自身を含む): 268457680

約数和(自身を除く): 139937424

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 608, 1216, 105691, 211382, 422764, 845528, 1691056, 2008129, 3382112, 4016258, 6764224, 8032516, 16065032, 32130064, 64260128, 128520256]

約数ペア:

[(1, 128520256), (2, 64260128), (4, 32130064), (8, 16065032), (16, 8032516), (19, 6764224), (32, 4016258), (38, 3382112), (64, 2008129), (76, 1691056), (152, 845528), (304, 422764), (608, 211382), (1216, 105691)]