About the Number

201212770

201212769 ← → 201212771

2進数表記:1011111111100100001101100010

漢数字表記:二億百二十一万二千七百七十

素因数分解:

2 1 × 5 1 × 11 1 × 61 1 × 157 1 × 191 1

素因数の和:427
約数の個数: 64
約数和(自身を含む): 406259712
約数和(自身を除く): 205046942

約数列:
[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 157, 191, 305, 314, 382, 610, 671, 785, 955, 1342, 1570, 1727, 1910, 2101, 3355, 3454, 4202, 6710, 8635, 9577, 10505, 11651, 17270, 19154, 21010, 23302, 29987, 47885, 58255, 59974, 95770, 105347, 116510, 128161, 149935, 210694, 256322, 299870, 329857, 526735, 640805, 659714, 1053470, 1281610, 1649285, 1829207, 3298570, 3658414, 9146035, 18292070, 20121277, 40242554, 100606385, 201212770]

約数ペア:
[(1, 201212770), (2, 100606385), (5, 40242554), (10, 20121277), (11, 18292070), (22, 9146035), (55, 3658414), (61, 3298570), (110, 1829207), (122, 1649285), (157, 1281610), (191, 1053470), (305, 659714), (314, 640805), (382, 526735), (610, 329857), (671, 299870), (785, 256322), (955, 210694), (1342, 149935), (1570, 128161), (1727, 116510), (1910, 105347), (2101, 95770), (3355, 59974), (3454, 58255), (4202, 47885), (6710, 29987), (8635, 23302), (9577, 21010), (10505, 19154), (11651, 17270)]

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