77621680

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18307}}^1$

素因数の和:18373

約数の個数: 40

約数和(自身を含む): 183885552

約数和(自身を除く): 106263872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 18307, 36614, 73228, 91535, 146456, 183070, 292912, 366140, 732280, 970271, 1464560, 1940542, 3881084, 4851355, 7762168, 9702710, 15524336, 19405420, 38810840, 77621680]

約数ペア:

[(1, 77621680), (2, 38810840), (4, 19405420), (5, 15524336), (8, 9702710), (10, 7762168), (16, 4851355), (20, 3881084), (40, 1940542), (53, 1464560), (80, 970271), (106, 732280), (212, 366140), (265, 292912), (424, 183070), (530, 146456), (848, 91535), (1060, 73228), (2120, 36614), (4240, 18307)]