About the Number

131121648

131121647 ← → 131121649

2進数表記:111110100001100000111110000

漢数字表記:一億三千百十二万千六百四十八

素因数分解:

2 4 × 3 2 × 7 2 × 18583 1

素因数の和:18611
約数の個数: 90
約数和(自身を含む): 426893064
約数和(自身を除く): 295771416

約数列:
[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 84, 98, 112, 126, 144, 147, 168, 196, 252, 294, 336, 392, 441, 504, 588, 784, 882, 1008, 1176, 1764, 2352, 3528, 7056, 18583, 37166, 55749, 74332, 111498, 130081, 148664, 167247, 222996, 260162, 297328, 334494, 390243, 445992, 520324, 668988, 780486, 891984, 910567, 1040648, 1170729, 1337976, 1560972, 1821134, 2081296, 2341458, 2675952, 2731701, 3121944, 3642268, 4682916, 5463402, 6243888, 7284536, 8195103, 9365832, 10926804, 14569072, 16390206, 18731664, 21853608, 32780412, 43707216, 65560824, 131121648]

約数ペア:
[(1, 131121648), (2, 65560824), (3, 43707216), (4, 32780412), (6, 21853608), (7, 18731664), (8, 16390206), (9, 14569072), (12, 10926804), (14, 9365832), (16, 8195103), (18, 7284536), (21, 6243888), (24, 5463402), (28, 4682916), (36, 3642268), (42, 3121944), (48, 2731701), (49, 2675952), (56, 2341458), (63, 2081296), (72, 1821134), (84, 1560972), (98, 1337976), (112, 1170729), (126, 1040648), (144, 910567), (147, 891984), (168, 780486), (196, 668988), (252, 520324), (294, 445992), (336, 390243), (392, 334494), (441, 297328), (504, 260162), (588, 222996), (784, 167247), (882, 148664), (1008, 130081), (1176, 111498), (1764, 74332), (2352, 55749), (3528, 37166), (7056, 18583)]

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