12755237680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{251}}^1\times {\mathrm{661}}^1$

素因数の和:987

約数の個数: 120

約数和(自身を含む): 30812059152

約数和(自身を除く): 18056821472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 251, 310, 496, 502, 620, 661, 961, 1004, 1240, 1255, 1322, 1922, 2008, 2480, 2510, 2644, 3305, 3844, 4016, 4805, 5020, 5288, 6610, 7688, 7781, 9610, 10040, 10576, 13220, 15376, 15562, 19220, 20080, 20491, 26440, 31124, 38440, 38905, 40982, 52880, 62248, 76880, 77810, 81964, 102455, 124496, 155620, 163928, 165911, 204910, 241211, 311240, 327856, 331822, 409820, 482422, 622480, 635221, 663644, 819640, 829555, 964844, 1206055, 1270442, 1327288, 1639280, 1659110, 1929688, 2412110, 2540884, 2654576, 3176105, 3318220, 3859376, 4824220, 5081768, 5143241, 6352210, 6636440, 9648440, 10163536, 10286482, 12704420, 13272880, 19296880, 20572964, 25408840, 25716205, 41145928, 50817680, 51432410, 82291856, 102864820, 159440471, 205729640, 318880942, 411459280, 637761884, 797202355, 1275523768, 1594404710, 2551047536, 3188809420, 6377618840, 12755237680]

約数ペア:

[(1, 12755237680), (2, 6377618840), (4, 3188809420), (5, 2551047536), (8, 1594404710), (10, 1275523768), (16, 797202355), (20, 637761884), (31, 411459280), (40, 318880942), (62, 205729640), (80, 159440471), (124, 102864820), (155, 82291856), (248, 51432410), (251, 50817680), (310, 41145928), (496, 25716205), (502, 25408840), (620, 20572964), (661, 19296880), (961, 13272880), (1004, 12704420), (1240, 10286482), (1255, 10163536), (1322, 9648440), (1922, 6636440), (2008, 6352210), (2480, 5143241), (2510, 5081768), (2644, 4824220), (3305, 3859376), (3844, 3318220), (4016, 3176105), (4805, 2654576), (5020, 2540884), (5288, 2412110), (6610, 1929688), (7688, 1659110), (7781, 1639280), (9610, 1327288), (10040, 1270442), (10576, 1206055), (13220, 964844), (15376, 829555), (15562, 819640), (19220, 663644), (20080, 635221), (20491, 622480), (26440, 482422), (31124, 409820), (38440, 331822), (38905, 327856), (40982, 311240), (52880, 241211), (62248, 204910), (76880, 165911), (77810, 163928), (81964, 155620), (102455, 124496)]