About the Number

6420890

6420889 ← → 6420891

2進数表記:11000011111100110011010

漢数字表記:六百四十二万八百九十

素因数分解:

2 1 × 5 1 × 7 1 × 29 1 × 3163 1

素因数の和:3206
約数の個数: 32
約数和(自身を含む): 13668480
約数和(自身を除く): 7247590

約数列:
[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 3163, 6326, 15815, 22141, 31630, 44282, 91727, 110705, 183454, 221410, 458635, 642089, 917270, 1284178, 3210445, 6420890]

約数ペア:
[(1, 6420890), (2, 3210445), (5, 1284178), (7, 917270), (10, 642089), (14, 458635), (29, 221410), (35, 183454), (58, 110705), (70, 91727), (145, 44282), (203, 31630), (290, 22141), (406, 15815), (1015, 6326), (2030, 3163)]

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