About the Number

1280197008

1280197007 ← → 1280197009

2進数表記:1001100010011100100000110010000

漢数字表記:十二億八千十九万七千八

素因数分解:

2 4 × 3 3 × 421 1 × 7039 1

素因数の和:7477
約数の個数: 80
約数和(自身を含む): 3683891200
約数和(自身を除く): 2403694192

約数列:
[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 421, 432, 842, 1263, 1684, 2526, 3368, 3789, 5052, 6736, 7039, 7578, 10104, 11367, 14078, 15156, 20208, 21117, 22734, 28156, 30312, 42234, 45468, 56312, 60624, 63351, 84468, 90936, 112624, 126702, 168936, 181872, 190053, 253404, 337872, 380106, 506808, 760212, 1013616, 1520424, 2963419, 3040848, 5926838, 8890257, 11853676, 17780514, 23707352, 26670771, 35561028, 47414704, 53341542, 71122056, 80012313, 106683084, 142244112, 160024626, 213366168, 320049252, 426732336, 640098504, 1280197008]

約数ペア:
[(1, 1280197008), (2, 640098504), (3, 426732336), (4, 320049252), (6, 213366168), (8, 160024626), (9, 142244112), (12, 106683084), (16, 80012313), (18, 71122056), (24, 53341542), (27, 47414704), (36, 35561028), (48, 26670771), (54, 23707352), (72, 17780514), (108, 11853676), (144, 8890257), (216, 5926838), (421, 3040848), (432, 2963419), (842, 1520424), (1263, 1013616), (1684, 760212), (2526, 506808), (3368, 380106), (3789, 337872), (5052, 253404), (6736, 190053), (7039, 181872), (7578, 168936), (10104, 126702), (11367, 112624), (14078, 90936), (15156, 84468), (20208, 63351), (21117, 60624), (22734, 56312), (28156, 45468), (30312, 42234)]

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