About the Number

42872991

42872990 ← → 42872992

2進数表記:10100011100011000010011111

漢数字表記:四千二百八十七万二千九百九十一

素因数分解:

3 1 × 7 2 × 29 1 × 89 1 × 113 1

素因数の和:248
約数の個数: 48
約数和(自身を含む): 70178400
約数和(自身を除く): 27305409

約数列:
[1, 3, 7, 21, 29, 49, 87, 89, 113, 147, 203, 267, 339, 609, 623, 791, 1421, 1869, 2373, 2581, 3277, 4263, 4361, 5537, 7743, 9831, 10057, 13083, 16611, 18067, 22939, 30171, 54201, 68817, 70399, 126469, 160573, 211197, 291653, 379407, 481719, 492793, 874959, 1478379, 2041571, 6124713, 14290997, 42872991]

約数ペア:
[(1, 42872991), (3, 14290997), (7, 6124713), (21, 2041571), (29, 1478379), (49, 874959), (87, 492793), (89, 481719), (113, 379407), (147, 291653), (203, 211197), (267, 160573), (339, 126469), (609, 70399), (623, 68817), (791, 54201), (1421, 30171), (1869, 22939), (2373, 18067), (2581, 16611), (3277, 13083), (4263, 10057), (4361, 9831), (5537, 7743)]

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