77942978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{9721}}^1$

素因数の和:9953

約数の個数: 16

約数和(自身を含む): 123663840

約数和(自身を除く): 45720862

約数列:

[1, 2, 19, 38, 211, 422, 4009, 8018, 9721, 19442, 184699, 369398, 2051131, 4102262, 38971489, 77942978]

約数ペア:

[(1, 77942978), (2, 38971489), (19, 4102262), (38, 2051131), (211, 369398), (422, 184699), (4009, 19442), (8018, 9721)]