About the Number

2123451390

2123451389 ← → 2123451391

2進数表記:1111110100100010100101111111110

漢数字表記:二十一億二千三百四十五万千三百九十

素因数分解:

2 1 × 3 1 × 5 1 × 199 1 × 401 1 × 887 1

素因数の和:1497
約数の個数: 64
約数和(自身を含む): 5140454400
約数和(自身を除く): 3017003010

約数列:
[1, 2, 3, 5, 6, 10, 15, 30, 199, 398, 401, 597, 802, 887, 995, 1194, 1203, 1774, 1990, 2005, 2406, 2661, 2985, 4010, 4435, 5322, 5970, 6015, 8870, 12030, 13305, 26610, 79799, 159598, 176513, 239397, 353026, 355687, 398995, 478794, 529539, 711374, 797990, 882565, 1059078, 1067061, 1196985, 1765130, 1778435, 2134122, 2393970, 2647695, 3556870, 5295390, 5335305, 10670610, 70781713, 141563426, 212345139, 353908565, 424690278, 707817130, 1061725695, 2123451390]

約数ペア:
[(1, 2123451390), (2, 1061725695), (3, 707817130), (5, 424690278), (6, 353908565), (10, 212345139), (15, 141563426), (30, 70781713), (199, 10670610), (398, 5335305), (401, 5295390), (597, 3556870), (802, 2647695), (887, 2393970), (995, 2134122), (1194, 1778435), (1203, 1765130), (1774, 1196985), (1990, 1067061), (2005, 1059078), (2406, 882565), (2661, 797990), (2985, 711374), (4010, 529539), (4435, 478794), (5322, 398995), (5970, 355687), (6015, 353026), (8870, 239397), (12030, 176513), (13305, 159598), (26610, 79799)]

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