156980816

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{160841}}^1$

素因数の和:160910

約数の個数: 20

約数和(自身を含む): 309138324

約数和(自身を除く): 152157508

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 160841, 321682, 643364, 1286728, 2573456, 9811301, 19622602, 39245204, 78490408, 156980816]

約数ペア:

[(1, 156980816), (2, 78490408), (4, 39245204), (8, 19622602), (16, 9811301), (61, 2573456), (122, 1286728), (244, 643364), (488, 321682), (976, 160841)]