7777761940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{18119}}^1$

素因数の和:18281

約数の個数: 72

約数和(自身を含む): 17826600960

約数和(自身を除く): 10048839020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 169, 254, 260, 338, 508, 635, 676, 845, 1270, 1651, 1690, 2540, 3302, 3380, 6604, 8255, 16510, 18119, 21463, 33020, 36238, 42926, 72476, 85852, 90595, 107315, 181190, 214630, 235547, 362380, 429260, 471094, 942188, 1177735, 2301113, 2355470, 3062111, 4602226, 4710940, 6124222, 9204452, 11505565, 12248444, 15310555, 23011130, 29914469, 30621110, 46022260, 59828938, 61242220, 119657876, 149572345, 299144690, 388888097, 598289380, 777776194, 1555552388, 1944440485, 3888880970, 7777761940]

約数ペア:

[(1, 7777761940), (2, 3888880970), (4, 1944440485), (5, 1555552388), (10, 777776194), (13, 598289380), (20, 388888097), (26, 299144690), (52, 149572345), (65, 119657876), (127, 61242220), (130, 59828938), (169, 46022260), (254, 30621110), (260, 29914469), (338, 23011130), (508, 15310555), (635, 12248444), (676, 11505565), (845, 9204452), (1270, 6124222), (1651, 4710940), (1690, 4602226), (2540, 3062111), (3302, 2355470), (3380, 2301113), (6604, 1177735), (8255, 942188), (16510, 471094), (18119, 429260), (21463, 362380), (33020, 235547), (36238, 214630), (42926, 181190), (72476, 107315), (85852, 90595)]