About the Number

1994804988

1994804987 ← → 1994804989

2進数表記:1110110111001100100111011111100

漢数字表記:十九億九千四百八十万四千九百八十八

素因数分解:

2 2 × 3 1 × 11 1 × 31 1 × 487489 1

素因数の和:487538
約数の個数: 48
約数和(自身を含む): 5241492480
約数和(自身を除く): 3246687492

約数列:
[1, 2, 3, 4, 6, 11, 12, 22, 31, 33, 44, 62, 66, 93, 124, 132, 186, 341, 372, 682, 1023, 1364, 2046, 4092, 487489, 974978, 1462467, 1949956, 2924934, 5362379, 5849868, 10724758, 15112159, 16087137, 21449516, 30224318, 32174274, 45336477, 60448636, 64348548, 90672954, 166233749, 181345908, 332467498, 498701247, 664934996, 997402494, 1994804988]

約数ペア:
[(1, 1994804988), (2, 997402494), (3, 664934996), (4, 498701247), (6, 332467498), (11, 181345908), (12, 166233749), (22, 90672954), (31, 64348548), (33, 60448636), (44, 45336477), (62, 32174274), (66, 30224318), (93, 21449516), (124, 16087137), (132, 15112159), (186, 10724758), (341, 5849868), (372, 5362379), (682, 2924934), (1023, 1949956), (1364, 1462467), (2046, 974978), (4092, 487489)]

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