291239840

素因数分解:

$2^5\times 5^1\times {\mathrm{1820249}}^1$

素因数の和:1820264

約数の個数: 24

約数和(自身を含む): 688054500

約数和(自身を除く): 396814660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1820249, 3640498, 7280996, 9101245, 14561992, 18202490, 29123984, 36404980, 58247968, 72809960, 145619920, 291239840]

約数ペア:

[(1, 291239840), (2, 145619920), (4, 72809960), (5, 58247968), (8, 36404980), (10, 29123984), (16, 18202490), (20, 14561992), (32, 9101245), (40, 7280996), (80, 3640498), (160, 1820249)]