About the Number

201909890

201909889 ← → 201909891

2進数表記:1100000010001110011010000010

漢数字表記:二億百九十万九千八百九十

素因数分解:

2 1 × 5 1 × 7 2 × 13 1 × 29 1 × 1093 1

素因数の和:1156
約数の個数: 96
約数和(自身を含む): 471426480
約数和(自身を除く): 269516590

約数列:
[1, 2, 5, 7, 10, 13, 14, 26, 29, 35, 49, 58, 65, 70, 91, 98, 130, 145, 182, 203, 245, 290, 377, 406, 455, 490, 637, 754, 910, 1015, 1093, 1274, 1421, 1885, 2030, 2186, 2639, 2842, 3185, 3770, 5278, 5465, 6370, 7105, 7651, 10930, 13195, 14209, 14210, 15302, 18473, 26390, 28418, 31697, 36946, 38255, 53557, 63394, 71045, 76510, 92365, 99463, 107114, 142090, 158485, 184730, 198926, 221879, 267785, 316970, 412061, 443758, 497315, 535570, 696241, 824122, 994630, 1109395, 1392482, 1553153, 2060305, 2218790, 2884427, 3106306, 3481205, 4120610, 5768854, 6962410, 7765765, 14422135, 15531530, 20190989, 28844270, 40381978, 100954945, 201909890]

約数ペア:
[(1, 201909890), (2, 100954945), (5, 40381978), (7, 28844270), (10, 20190989), (13, 15531530), (14, 14422135), (26, 7765765), (29, 6962410), (35, 5768854), (49, 4120610), (58, 3481205), (65, 3106306), (70, 2884427), (91, 2218790), (98, 2060305), (130, 1553153), (145, 1392482), (182, 1109395), (203, 994630), (245, 824122), (290, 696241), (377, 535570), (406, 497315), (455, 443758), (490, 412061), (637, 316970), (754, 267785), (910, 221879), (1015, 198926), (1093, 184730), (1274, 158485), (1421, 142090), (1885, 107114), (2030, 99463), (2186, 92365), (2639, 76510), (2842, 71045), (3185, 63394), (3770, 53557), (5278, 38255), (5465, 36946), (6370, 31697), (7105, 28418), (7651, 26390), (10930, 18473), (13195, 15302), (14209, 14210)]

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