20171120920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{524743}}^1$

素因数の和:524816

約数の個数: 48

約数和(自身を含む): 46896371280

約数和(自身を除く): 26725250360

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 19220, 38440, 524743, 1049486, 2098972, 2623715, 4197944, 5247430, 10494860, 16267033, 20989720, 32534066, 65068132, 81335165, 130136264, 162670330, 325340660, 504278023, 650681320, 1008556046, 2017112092, 2521390115, 4034224184, 5042780230, 10085560460, 20171120920]

約数ペア:

[(1, 20171120920), (2, 10085560460), (4, 5042780230), (5, 4034224184), (8, 2521390115), (10, 2017112092), (20, 1008556046), (31, 650681320), (40, 504278023), (62, 325340660), (124, 162670330), (155, 130136264), (248, 81335165), (310, 65068132), (620, 32534066), (961, 20989720), (1240, 16267033), (1922, 10494860), (3844, 5247430), (4805, 4197944), (7688, 2623715), (9610, 2098972), (19220, 1049486), (38440, 524743)]