2688687040

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20849}}^1$

素因数の和:20910

約数の個数: 112

約数和(自身を含む): 7117689600

約数和(自身を除く): 4429002560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 806, 832, 992, 1040, 1240, 1612, 1984, 2015, 2080, 2480, 3224, 4030, 4160, 4960, 6448, 8060, 9920, 12896, 16120, 20849, 25792, 32240, 41698, 64480, 83396, 104245, 128960, 166792, 208490, 271037, 333584, 416980, 542074, 646319, 667168, 833960, 1084148, 1292638, 1334336, 1355185, 1667920, 2168296, 2585276, 2710370, 3231595, 3335840, 4336592, 5170552, 5420740, 6463190, 6671680, 8402147, 8673184, 10341104, 10841480, 12926380, 16804294, 17346368, 20682208, 21682960, 25852760, 33608588, 41364416, 42010735, 43365920, 51705520, 67217176, 84021470, 86731840, 103411040, 134434352, 168042940, 206822080, 268868704, 336085880, 537737408, 672171760, 1344343520, 2688687040]

約数ペア:

[(1, 2688687040), (2, 1344343520), (4, 672171760), (5, 537737408), (8, 336085880), (10, 268868704), (13, 206822080), (16, 168042940), (20, 134434352), (26, 103411040), (31, 86731840), (32, 84021470), (40, 67217176), (52, 51705520), (62, 43365920), (64, 42010735), (65, 41364416), (80, 33608588), (104, 25852760), (124, 21682960), (130, 20682208), (155, 17346368), (160, 16804294), (208, 12926380), (248, 10841480), (260, 10341104), (310, 8673184), (320, 8402147), (403, 6671680), (416, 6463190), (496, 5420740), (520, 5170552), (620, 4336592), (806, 3335840), (832, 3231595), (992, 2710370), (1040, 2585276), (1240, 2168296), (1612, 1667920), (1984, 1355185), (2015, 1334336), (2080, 1292638), (2480, 1084148), (3224, 833960), (4030, 667168), (4160, 646319), (4960, 542074), (6448, 416980), (8060, 333584), (9920, 271037), (12896, 208490), (16120, 166792), (20849, 128960), (25792, 104245), (32240, 83396), (41698, 64480)]