About the Number

131145790780

131145790779 ← → 131145790781

2進数表記:1111010001000111001011111010100111100

漢数字表記:千三百十一億四千五百七十九万七百八十

素因数分解:

2 2 × 5 1 × 31 1 × 181 1 × 599 1 × 1951 1

素因数の和:2771
約数の個数: 96
約数和(自身を含む): 286484889600
約数和(自身を除く): 155339098820

約数列:
[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 181, 310, 362, 599, 620, 724, 905, 1198, 1810, 1951, 2396, 2995, 3620, 3902, 5611, 5990, 7804, 9755, 11222, 11980, 18569, 19510, 22444, 28055, 37138, 39020, 56110, 60481, 74276, 92845, 108419, 112220, 120962, 185690, 216838, 241924, 302405, 353131, 371380, 433676, 542095, 604810, 706262, 1084190, 1168649, 1209620, 1412524, 1765655, 2168380, 2337298, 3360989, 3531310, 4674596, 5843245, 6721978, 7062620, 10947061, 11686490, 13443956, 16804945, 21894122, 23372980, 33609890, 36228119, 43788244, 54735305, 67219780, 72456238, 109470610, 144912476, 181140595, 211525469, 218941220, 362281190, 423050938, 724562380, 846101876, 1057627345, 2115254690, 4230509380, 6557289539, 13114579078, 26229158156, 32786447695, 65572895390, 131145790780]

約数ペア:
[(1, 131145790780), (2, 65572895390), (4, 32786447695), (5, 26229158156), (10, 13114579078), (20, 6557289539), (31, 4230509380), (62, 2115254690), (124, 1057627345), (155, 846101876), (181, 724562380), (310, 423050938), (362, 362281190), (599, 218941220), (620, 211525469), (724, 181140595), (905, 144912476), (1198, 109470610), (1810, 72456238), (1951, 67219780), (2396, 54735305), (2995, 43788244), (3620, 36228119), (3902, 33609890), (5611, 23372980), (5990, 21894122), (7804, 16804945), (9755, 13443956), (11222, 11686490), (11980, 10947061), (18569, 7062620), (19510, 6721978), (22444, 5843245), (28055, 4674596), (37138, 3531310), (39020, 3360989), (56110, 2337298), (60481, 2168380), (74276, 1765655), (92845, 1412524), (108419, 1209620), (112220, 1168649), (120962, 1084190), (185690, 706262), (216838, 604810), (241924, 542095), (302405, 433676), (353131, 371380)]

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