56398780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 122633280

約数和(自身を除く): 66234500

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 410, 436, 545, 631, 820, 1090, 1262, 2180, 2524, 3155, 4469, 6310, 8938, 12620, 17876, 22345, 25871, 44690, 51742, 68779, 89380, 103484, 129355, 137558, 258710, 275116, 343895, 517420, 687790, 1375580, 2819939, 5639878, 11279756, 14099695, 28199390, 56398780]

約数ペア:

[(1, 56398780), (2, 28199390), (4, 14099695), (5, 11279756), (10, 5639878), (20, 2819939), (41, 1375580), (82, 687790), (109, 517420), (164, 343895), (205, 275116), (218, 258710), (410, 137558), (436, 129355), (545, 103484), (631, 89380), (820, 68779), (1090, 51742), (1262, 44690), (2180, 25871), (2524, 22345), (3155, 17876), (4469, 12620), (6310, 8938)]