About the Number

31129280

31129279 ← → 31129281

2進数表記:1110110101111111011000000

漢数字表記:三千百十二万九千二百八十

素因数分解:

2 6 × 5 1 × 7 1 × 13 1 × 1069 1

素因数の和:1106
約数の個数: 112
約数和(自身を含む): 91318080
約数和(自身を除く): 60188800

約数列:
[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 728, 832, 910, 1040, 1069, 1120, 1456, 1820, 2080, 2138, 2240, 2912, 3640, 4160, 4276, 5345, 5824, 7280, 7483, 8552, 10690, 13897, 14560, 14966, 17104, 21380, 27794, 29120, 29932, 34208, 37415, 42760, 55588, 59864, 68416, 69485, 74830, 85520, 97279, 111176, 119728, 138970, 149660, 171040, 194558, 222352, 239456, 277940, 299320, 342080, 389116, 444704, 478912, 486395, 555880, 598640, 778232, 889408, 972790, 1111760, 1197280, 1556464, 1945580, 2223520, 2394560, 3112928, 3891160, 4447040, 6225856, 7782320, 15564640, 31129280]

約数ペア:
[(1, 31129280), (2, 15564640), (4, 7782320), (5, 6225856), (7, 4447040), (8, 3891160), (10, 3112928), (13, 2394560), (14, 2223520), (16, 1945580), (20, 1556464), (26, 1197280), (28, 1111760), (32, 972790), (35, 889408), (40, 778232), (52, 598640), (56, 555880), (64, 486395), (65, 478912), (70, 444704), (80, 389116), (91, 342080), (104, 299320), (112, 277940), (130, 239456), (140, 222352), (160, 194558), (182, 171040), (208, 149660), (224, 138970), (260, 119728), (280, 111176), (320, 97279), (364, 85520), (416, 74830), (448, 69485), (455, 68416), (520, 59864), (560, 55588), (728, 42760), (832, 37415), (910, 34208), (1040, 29932), (1069, 29120), (1120, 27794), (1456, 21380), (1820, 17104), (2080, 14966), (2138, 14560), (2240, 13897), (2912, 10690), (3640, 8552), (4160, 7483), (4276, 7280), (5345, 5824)]

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