312663520

素因数分解:

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

素因数の和:445

約数の個数: 144

約数和(自身を含む): 827874432

約数和(自身を除く): 515210912

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 169, 208, 248, 260, 310, 338, 373, 403, 416, 496, 520, 620, 676, 746, 806, 845, 992, 1040, 1240, 1352, 1492, 1612, 1690, 1865, 2015, 2080, 2480, 2704, 2984, 3224, 3380, 3730, 4030, 4849, 4960, 5239, 5408, 5968, 6448, 6760, 7460, 8060, 9698, 10478, 11563, 11936, 12896, 13520, 14920, 16120, 19396, 20956, 23126, 24245, 26195, 27040, 29840, 32240, 38792, 41912, 46252, 48490, 52390, 57815, 59680, 63037, 64480, 77584, 83824, 92504, 96980, 104780, 115630, 126074, 150319, 155168, 167648, 185008, 193960, 209560, 231260, 252148, 300638, 315185, 370016, 387920, 419120, 462520, 504296, 601276, 630370, 751595, 775840, 838240, 925040, 1008592, 1202552, 1260740, 1503190, 1850080, 1954147, 2017184, 2405104, 2521480, 3006380, 3908294, 4810208, 5042960, 6012760, 7816588, 9770735, 10085920, 12025520, 15633176, 19541470, 24051040, 31266352, 39082940, 62532704, 78165880, 156331760, 312663520]

約数ペア:

[(1, 312663520), (2, 156331760), (4, 78165880), (5, 62532704), (8, 39082940), (10, 31266352), (13, 24051040), (16, 19541470), (20, 15633176), (26, 12025520), (31, 10085920), (32, 9770735), (40, 7816588), (52, 6012760), (62, 5042960), (65, 4810208), (80, 3908294), (104, 3006380), (124, 2521480), (130, 2405104), (155, 2017184), (160, 1954147), (169, 1850080), (208, 1503190), (248, 1260740), (260, 1202552), (310, 1008592), (338, 925040), (373, 838240), (403, 775840), (416, 751595), (496, 630370), (520, 601276), (620, 504296), (676, 462520), (746, 419120), (806, 387920), (845, 370016), (992, 315185), (1040, 300638), (1240, 252148), (1352, 231260), (1492, 209560), (1612, 193960), (1690, 185008), (1865, 167648), (2015, 155168), (2080, 150319), (2480, 126074), (2704, 115630), (2984, 104780), (3224, 96980), (3380, 92504), (3730, 83824), (4030, 77584), (4849, 64480), (4960, 63037), (5239, 59680), (5408, 57815), (5968, 52390), (6448, 48490), (6760, 46252), (7460, 41912), (8060, 38792), (9698, 32240), (10478, 29840), (11563, 27040), (11936, 26195), (12896, 24245), (13520, 23126), (14920, 20956), (16120, 19396)]