20180936237

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^2\times {\mathrm{41}}^1\times {\mathrm{691}}^1$

素因数の和:819

約数の個数: 72

約数和(自身を含む): 26934887616

約数和(自身を除く): 6753951379

約数列:

[1, 7, 11, 29, 41, 77, 121, 203, 287, 319, 451, 691, 841, 847, 1189, 2233, 3157, 3509, 4837, 4961, 5887, 7601, 8323, 9251, 13079, 20039, 24563, 28331, 34481, 34727, 53207, 64757, 83611, 91553, 101761, 140273, 143869, 198317, 220429, 241367, 311641, 379291, 581131, 585277, 712327, 821599, 1007083, 1543003, 2181487, 2424719, 2655037, 3428051, 4067917, 4172201, 5751193, 6392441, 9037589, 16973033, 23826371, 23996357, 29205407, 44747087, 63263123, 70316851, 99413479, 166784597, 262090081, 492217957, 695894353, 1834630567, 2882990891, 20180936237]

約数ペア:

[(1, 20180936237), (7, 2882990891), (11, 1834630567), (29, 695894353), (41, 492217957), (77, 262090081), (121, 166784597), (203, 99413479), (287, 70316851), (319, 63263123), (451, 44747087), (691, 29205407), (841, 23996357), (847, 23826371), (1189, 16973033), (2233, 9037589), (3157, 6392441), (3509, 5751193), (4837, 4172201), (4961, 4067917), (5887, 3428051), (7601, 2655037), (8323, 2424719), (9251, 2181487), (13079, 1543003), (20039, 1007083), (24563, 821599), (28331, 712327), (34481, 585277), (34727, 581131), (53207, 379291), (64757, 311641), (83611, 241367), (91553, 220429), (101761, 198317), (140273, 143869)]