About the Number

28690640

28690639 ← → 28690641

2進数表記:1101101011100100011010000

漢数字表記:二千八百六十九万六百四十

素因数分解:

2 4 × 5 1 × 11 1 × 32603 1

素因数の和:32627
約数の個数: 40
約数和(自身を含む): 72772128
約数和(自身を除く): 44081488

約数列:
[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32603, 65206, 130412, 163015, 260824, 326030, 358633, 521648, 652060, 717266, 1304120, 1434532, 1793165, 2608240, 2869064, 3586330, 5738128, 7172660, 14345320, 28690640]

約数ペア:
[(1, 28690640), (2, 14345320), (4, 7172660), (5, 5738128), (8, 3586330), (10, 2869064), (11, 2608240), (16, 1793165), (20, 1434532), (22, 1304120), (40, 717266), (44, 652060), (55, 521648), (80, 358633), (88, 326030), (110, 260824), (176, 163015), (220, 130412), (440, 65206), (880, 32603)]

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