77281360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3911}}^1$

素因数の和:3956

約数の個数: 80

約数和(自身を含む): 203736960

約数和(自身を除く): 126455600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3911, 3952, 4940, 7822, 9880, 15644, 19555, 19760, 31288, 39110, 50843, 62576, 74309, 78220, 101686, 148618, 156440, 203372, 254215, 297236, 312880, 371545, 406744, 508430, 594472, 743090, 813488, 966017, 1016860, 1188944, 1486180, 1932034, 2033720, 2972360, 3864068, 4067440, 4830085, 5944720, 7728136, 9660170, 15456272, 19320340, 38640680, 77281360]

約数ペア:

[(1, 77281360), (2, 38640680), (4, 19320340), (5, 15456272), (8, 9660170), (10, 7728136), (13, 5944720), (16, 4830085), (19, 4067440), (20, 3864068), (26, 2972360), (38, 2033720), (40, 1932034), (52, 1486180), (65, 1188944), (76, 1016860), (80, 966017), (95, 813488), (104, 743090), (130, 594472), (152, 508430), (190, 406744), (208, 371545), (247, 312880), (260, 297236), (304, 254215), (380, 203372), (494, 156440), (520, 148618), (760, 101686), (988, 78220), (1040, 74309), (1235, 62576), (1520, 50843), (1976, 39110), (2470, 31288), (3911, 19760), (3952, 19555), (4940, 15644), (7822, 9880)]