About the Number

61680990

61680989 ← → 61680991

2進数表記:11101011010010110101011110

漢数字表記:六千百六十八万九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 419 1 × 701 1

素因数の和:1137
約数の個数: 64
約数和(自身を含む): 169827840
約数和(自身を除く): 108146850

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 419, 701, 838, 1257, 1402, 2095, 2103, 2514, 2933, 3505, 4190, 4206, 4907, 5866, 6285, 7010, 8799, 9814, 10515, 12570, 14665, 14721, 17598, 21030, 24535, 29330, 29442, 43995, 49070, 73605, 87990, 147210, 293719, 587438, 881157, 1468595, 1762314, 2056033, 2937190, 4112066, 4405785, 6168099, 8811570, 10280165, 12336198, 20560330, 30840495, 61680990]

約数ペア:
[(1, 61680990), (2, 30840495), (3, 20560330), (5, 12336198), (6, 10280165), (7, 8811570), (10, 6168099), (14, 4405785), (15, 4112066), (21, 2937190), (30, 2056033), (35, 1762314), (42, 1468595), (70, 881157), (105, 587438), (210, 293719), (419, 147210), (701, 87990), (838, 73605), (1257, 49070), (1402, 43995), (2095, 29442), (2103, 29330), (2514, 24535), (2933, 21030), (3505, 17598), (4190, 14721), (4206, 14665), (4907, 12570), (5866, 10515), (6285, 9814), (7010, 8799)]

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