About the Number

28838390

28838389 ← → 28838391

2進数表記:1101110000000100111110110

漢数字表記:二千八百八十三万八千三百九十

素因数分解:

2 1 × 5 1 × 7 1 × 19 1 × 21683 1

素因数の和:21716
約数の個数: 32
約数和(自身を含む): 62449920
約数和(自身を除く): 33611530

約数列:
[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 21683, 43366, 108415, 151781, 216830, 303562, 411977, 758905, 823954, 1517810, 2059885, 2883839, 4119770, 5767678, 14419195, 28838390]

約数ペア:
[(1, 28838390), (2, 14419195), (5, 5767678), (7, 4119770), (10, 2883839), (14, 2059885), (19, 1517810), (35, 823954), (38, 758905), (70, 411977), (95, 303562), (133, 216830), (190, 151781), (266, 108415), (665, 43366), (1330, 21683)]

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