About the Number

20402564

20402563 ← → 20402565

2進数表記:1001101110101000110000100

漢数字表記:二千四十万二千五百六十四

素因数分解:

2 2 × 7 1 × 13 1 × 23 1 × 2437 1

素因数の和:2484
約数の個数: 48
約数和(自身を含む): 45873408
約数和(自身を除く): 25470844

約数列:
[1, 2, 4, 7, 13, 14, 23, 26, 28, 46, 52, 91, 92, 161, 182, 299, 322, 364, 598, 644, 1196, 2093, 2437, 4186, 4874, 8372, 9748, 17059, 31681, 34118, 56051, 63362, 68236, 112102, 126724, 221767, 224204, 392357, 443534, 728663, 784714, 887068, 1457326, 1569428, 2914652, 5100641, 10201282, 20402564]

約数ペア:
[(1, 20402564), (2, 10201282), (4, 5100641), (7, 2914652), (13, 1569428), (14, 1457326), (23, 887068), (26, 784714), (28, 728663), (46, 443534), (52, 392357), (91, 224204), (92, 221767), (161, 126724), (182, 112102), (299, 68236), (322, 63362), (364, 56051), (598, 34118), (644, 31681), (1196, 17059), (2093, 9748), (2437, 8372), (4186, 4874)]

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