About the Number

331381280

331381279 ← → 331381281

2進数表記:10011110000000111101000100000

漢数字表記:三億三千百三十八万千二百八十

素因数分解:

2 5 × 5 1 × 19 1 × 61 1 × 1787 1

素因数の和:1882
約数の個数: 96
約数和(自身を含む): 838071360
約数和(自身を除く): 506690080

約数列:
[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 61, 76, 80, 95, 122, 152, 160, 190, 244, 304, 305, 380, 488, 608, 610, 760, 976, 1159, 1220, 1520, 1787, 1952, 2318, 2440, 3040, 3574, 4636, 4880, 5795, 7148, 8935, 9272, 9760, 11590, 14296, 17870, 18544, 23180, 28592, 33953, 35740, 37088, 46360, 57184, 67906, 71480, 92720, 109007, 135812, 142960, 169765, 185440, 218014, 271624, 285920, 339530, 436028, 543248, 545035, 679060, 872056, 1086496, 1090070, 1358120, 1744112, 2071133, 2180140, 2716240, 3488224, 4142266, 4360280, 5432480, 8284532, 8720560, 10355665, 16569064, 17441120, 20711330, 33138128, 41422660, 66276256, 82845320, 165690640, 331381280]

約数ペア:
[(1, 331381280), (2, 165690640), (4, 82845320), (5, 66276256), (8, 41422660), (10, 33138128), (16, 20711330), (19, 17441120), (20, 16569064), (32, 10355665), (38, 8720560), (40, 8284532), (61, 5432480), (76, 4360280), (80, 4142266), (95, 3488224), (122, 2716240), (152, 2180140), (160, 2071133), (190, 1744112), (244, 1358120), (304, 1090070), (305, 1086496), (380, 872056), (488, 679060), (608, 545035), (610, 543248), (760, 436028), (976, 339530), (1159, 285920), (1220, 271624), (1520, 218014), (1787, 185440), (1952, 169765), (2318, 142960), (2440, 135812), (3040, 109007), (3574, 92720), (4636, 71480), (4880, 67906), (5795, 57184), (7148, 46360), (8935, 37088), (9272, 35740), (9760, 33953), (11590, 28592), (14296, 23180), (17870, 18544)]

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