About the Number

220688880

220688879 ← → 220688881

2進数表記:1101001001110111000111110000

漢数字表記:二億二千六十八万八千八百八十

素因数分解:

2 4 × 3 1 × 5 1 × 947 1 × 971 1

素因数の和:1934
約数の個数: 80
約数和(自身を含む): 685563264
約数和(自身を除く): 464874384

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 947, 971, 1894, 1942, 2841, 2913, 3788, 3884, 4735, 4855, 5682, 5826, 7576, 7768, 9470, 9710, 11364, 11652, 14205, 14565, 15152, 15536, 18940, 19420, 22728, 23304, 28410, 29130, 37880, 38840, 45456, 46608, 56820, 58260, 75760, 77680, 113640, 116520, 227280, 233040, 919537, 1839074, 2758611, 3678148, 4597685, 5517222, 7356296, 9195370, 11034444, 13793055, 14712592, 18390740, 22068888, 27586110, 36781480, 44137776, 55172220, 73562960, 110344440, 220688880]

約数ペア:
[(1, 220688880), (2, 110344440), (3, 73562960), (4, 55172220), (5, 44137776), (6, 36781480), (8, 27586110), (10, 22068888), (12, 18390740), (15, 14712592), (16, 13793055), (20, 11034444), (24, 9195370), (30, 7356296), (40, 5517222), (48, 4597685), (60, 3678148), (80, 2758611), (120, 1839074), (240, 919537), (947, 233040), (971, 227280), (1894, 116520), (1942, 113640), (2841, 77680), (2913, 75760), (3788, 58260), (3884, 56820), (4735, 46608), (4855, 45456), (5682, 38840), (5826, 37880), (7576, 29130), (7768, 28410), (9470, 23304), (9710, 22728), (11364, 19420), (11652, 18940), (14205, 15536), (14565, 15152)]

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