About the Number

1231272144

1231272143 ← → 1231272145

2進数表記:1001001011000111011100011010000

漢数字表記:十二億三千百二十七万二千百四十四

素因数分解:

2 4 × 3 3 × 131 1 × 21757 1

素因数の和:21905
約数の個数: 80
約数和(自身を含む): 3561349440
約数和(自身を除く): 2330077296

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 131, 144, 216, 262, 393, 432, 524, 786, 1048, 1179, 1572, 2096, 2358, 3144, 3537, 4716, 6288, 7074, 9432, 14148, 18864, 21757, 28296, 43514, 56592, 65271, 87028, 130542, 174056, 195813, 261084, 348112, 391626, 522168, 587439, 783252, 1044336, 1174878, 1566504, 2349756, 2850167, 3133008, 4699512, 5700334, 8550501, 9399024, 11400668, 17101002, 22801336, 25651503, 34202004, 45602672, 51303006, 68404008, 76954509, 102606012, 136808016, 153909018, 205212024, 307818036, 410424048, 615636072, 1231272144]

約数ペア:
[(1, 1231272144), (2, 615636072), (3, 410424048), (4, 307818036), (6, 205212024), (8, 153909018), (9, 136808016), (12, 102606012), (16, 76954509), (18, 68404008), (24, 51303006), (27, 45602672), (36, 34202004), (48, 25651503), (54, 22801336), (72, 17101002), (108, 11400668), (131, 9399024), (144, 8550501), (216, 5700334), (262, 4699512), (393, 3133008), (432, 2850167), (524, 2349756), (786, 1566504), (1048, 1174878), (1179, 1044336), (1572, 783252), (2096, 587439), (2358, 522168), (3144, 391626), (3537, 348112), (4716, 261084), (6288, 195813), (7074, 174056), (9432, 130542), (14148, 87028), (18864, 65271), (21757, 56592), (28296, 43514)]

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