78165880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:441

約数の個数: 96

約数和(自身を含む): 197112960

約数和(自身を除く): 118947080

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 169, 248, 260, 310, 338, 373, 403, 520, 620, 676, 746, 806, 845, 1240, 1352, 1492, 1612, 1690, 1865, 2015, 2984, 3224, 3380, 3730, 4030, 4849, 5239, 6760, 7460, 8060, 9698, 10478, 11563, 14920, 16120, 19396, 20956, 23126, 24245, 26195, 38792, 41912, 46252, 48490, 52390, 57815, 63037, 92504, 96980, 104780, 115630, 126074, 150319, 193960, 209560, 231260, 252148, 300638, 315185, 462520, 504296, 601276, 630370, 751595, 1202552, 1260740, 1503190, 1954147, 2521480, 3006380, 3908294, 6012760, 7816588, 9770735, 15633176, 19541470, 39082940, 78165880]

約数ペア:

[(1, 78165880), (2, 39082940), (4, 19541470), (5, 15633176), (8, 9770735), (10, 7816588), (13, 6012760), (20, 3908294), (26, 3006380), (31, 2521480), (40, 1954147), (52, 1503190), (62, 1260740), (65, 1202552), (104, 751595), (124, 630370), (130, 601276), (155, 504296), (169, 462520), (248, 315185), (260, 300638), (310, 252148), (338, 231260), (373, 209560), (403, 193960), (520, 150319), (620, 126074), (676, 115630), (746, 104780), (806, 96980), (845, 92504), (1240, 63037), (1352, 57815), (1492, 52390), (1612, 48490), (1690, 46252), (1865, 41912), (2015, 38792), (2984, 26195), (3224, 24245), (3380, 23126), (3730, 20956), (4030, 19396), (4849, 16120), (5239, 14920), (6760, 11563), (7460, 10478), (8060, 9698)]