About the Number
129788480
2進数表記:111101111000110101001000000
漢数字表記:一億二千九百七十八万八千四百八十
素因数分解:
素因数の和:248
約数の個数: 84
約数和(自身を含む): 317091060
約数和(自身を除く): 187302580
約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 109, 122, 160, 218, 244, 305, 320, 436, 488, 545, 610, 872, 976, 1090, 1220, 1744, 1952, 2180, 2440, 3488, 3721, 3904, 4360, 4880, 6649, 6976, 7442, 8720, 9760, 13298, 14884, 17440, 18605, 19520, 26596, 29768, 33245, 34880, 37210, 53192, 59536, 66490, 74420, 106384, 119072, 132980, 148840, 212768, 238144, 265960, 297680, 405589, 425536, 531920, 595360, 811178, 1063840, 1190720, 1622356, 2027945, 2127680, 3244712, 4055890, 6489424, 8111780, 12978848, 16223560, 25957696, 32447120, 64894240, 129788480]
約数ペア:
[(1, 129788480), (2, 64894240), (4, 32447120), (5, 25957696), (8, 16223560), (10, 12978848), (16, 8111780), (20, 6489424), (32, 4055890), (40, 3244712), (61, 2127680), (64, 2027945), (80, 1622356), (109, 1190720), (122, 1063840), (160, 811178), (218, 595360), (244, 531920), (305, 425536), (320, 405589), (436, 297680), (488, 265960), (545, 238144), (610, 212768), (872, 148840), (976, 132980), (1090, 119072), (1220, 106384), (1744, 74420), (1952, 66490), (2180, 59536), (2440, 53192), (3488, 37210), (3721, 34880), (3904, 33245), (4360, 29768), (4880, 26596), (6649, 19520), (6976, 18605), (7442, 17440), (8720, 14884), (9760, 13298)]このpageの処理時間: 0.00792694091796875 seconds