20176942460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1234819}}^1$

素因数の和:1234890

約数の個数: 48

約数和(自身を含む): 45638947200

約数和(自身を除く): 25462004740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 8170, 16340, 1234819, 2469638, 4939276, 6174095, 12348190, 23461561, 24696380, 46923122, 53097217, 93846244, 106194434, 117307805, 212388868, 234615610, 265486085, 469231220, 530972170, 1008847123, 1061944340, 2017694246, 4035388492, 5044235615, 10088471230, 20176942460]

約数ペア:

[(1, 20176942460), (2, 10088471230), (4, 5044235615), (5, 4035388492), (10, 2017694246), (19, 1061944340), (20, 1008847123), (38, 530972170), (43, 469231220), (76, 265486085), (86, 234615610), (95, 212388868), (172, 117307805), (190, 106194434), (215, 93846244), (380, 53097217), (430, 46923122), (817, 24696380), (860, 23461561), (1634, 12348190), (3268, 6174095), (4085, 4939276), (8170, 2469638), (16340, 1234819)]