About the Number

27720390

27720389 ← → 27720391

2進数表記:1101001101111101011000110

漢数字表記:二千七百七十二万三百九十

素因数分解:

2 1 × 3 1 × 5 1 × 103 1 × 8971 1

素因数の和:9084
約数の個数: 32
約数和(自身を含む): 67182336
約数和(自身を除く): 39461946

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 103, 206, 309, 515, 618, 1030, 1545, 3090, 8971, 17942, 26913, 44855, 53826, 89710, 134565, 269130, 924013, 1848026, 2772039, 4620065, 5544078, 9240130, 13860195, 27720390]

約数ペア:
[(1, 27720390), (2, 13860195), (3, 9240130), (5, 5544078), (6, 4620065), (10, 2772039), (15, 1848026), (30, 924013), (103, 269130), (206, 134565), (309, 89710), (515, 53826), (618, 44855), (1030, 26913), (1545, 17942), (3090, 8971)]

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