About the Number

12884990

12884989 ← → 12884991

2進数表記:110001001001101111111110

漢数字表記:千二百八十八万四千九百九十

素因数分解:

2 1 × 5 1 × 29 1 × 157 1 × 283 1

素因数の和:476
約数の個数: 32
約数和(自身を含む): 24230880
約数和(自身を除く): 11345890

約数列:
[1, 2, 5, 10, 29, 58, 145, 157, 283, 290, 314, 566, 785, 1415, 1570, 2830, 4553, 8207, 9106, 16414, 22765, 41035, 44431, 45530, 82070, 88862, 222155, 444310, 1288499, 2576998, 6442495, 12884990]

約数ペア:
[(1, 12884990), (2, 6442495), (5, 2576998), (10, 1288499), (29, 444310), (58, 222155), (145, 88862), (157, 82070), (283, 45530), (290, 44431), (314, 41035), (566, 22765), (785, 16414), (1415, 9106), (1570, 8207), (2830, 4553)]

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