About the Number

1216040840

1216040839 ← → 1216040841

2進数表記:1001000011110110100111110001000

漢数字表記:十二億千六百四万八百四十

素因数分解:

2 3 × 5 1 × 7 2 × 620429 1

素因数の和:620454
約数の個数: 48
約数和(自身を含む): 3182805900
約数和(自身を除く): 1966765060

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 620429, 1240858, 2481716, 3102145, 4343003, 4963432, 6204290, 8686006, 12408580, 17372012, 21715015, 24817160, 30401021, 34744024, 43430030, 60802042, 86860060, 121604084, 152005105, 173720120, 243208168, 304010210, 608020420, 1216040840]

約数ペア:
[(1, 1216040840), (2, 608020420), (4, 304010210), (5, 243208168), (7, 173720120), (8, 152005105), (10, 121604084), (14, 86860060), (20, 60802042), (28, 43430030), (35, 34744024), (40, 30401021), (49, 24817160), (56, 21715015), (70, 17372012), (98, 12408580), (140, 8686006), (196, 6204290), (245, 4963432), (280, 4343003), (392, 3102145), (490, 2481716), (980, 1240858), (1960, 620429)]

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