About the Number

6408990

6408989 ← → 6408991

2進数表記:11000011100101100011110

漢数字表記:六百四十万八千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 7 1 × 3391 1

素因数の和:3414
約数の個数: 64
約数和(自身を含む): 19537920
約数和(自身を除く): 13128930

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 3391, 6782, 10173, 16955, 20346, 23737, 30519, 33910, 47474, 50865, 61038, 71211, 91557, 101730, 118685, 142422, 152595, 183114, 213633, 237370, 305190, 356055, 427266, 457785, 640899, 712110, 915570, 1068165, 1281798, 2136330, 3204495, 6408990]

約数ペア:
[(1, 6408990), (2, 3204495), (3, 2136330), (5, 1281798), (6, 1068165), (7, 915570), (9, 712110), (10, 640899), (14, 457785), (15, 427266), (18, 356055), (21, 305190), (27, 237370), (30, 213633), (35, 183114), (42, 152595), (45, 142422), (54, 118685), (63, 101730), (70, 91557), (90, 71211), (105, 61038), (126, 50865), (135, 47474), (189, 33910), (210, 30519), (270, 23737), (315, 20346), (378, 16955), (630, 10173), (945, 6782), (1890, 3391)]

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