About the Number

54981990

54981989 ← → 54981991

2進数表記:11010001101111010101100110

漢数字表記:五千四百九十八万千九百九十

素因数分解:

2 1 × 3 4 × 5 1 × 7 1 × 9697 1

素因数の和:9723
約数の個数: 80
約数和(自身を含む): 168977952
約数和(自身を除く): 113995962

約数列:
[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 5670, 9697, 19394, 29091, 48485, 58182, 67879, 87273, 96970, 135758, 145455, 174546, 203637, 261819, 290910, 339395, 407274, 436365, 523638, 610911, 678790, 785457, 872730, 1018185, 1221822, 1309095, 1570914, 1832733, 2036370, 2618190, 3054555, 3665466, 3927285, 5498199, 6109110, 7854570, 9163665, 10996398, 18327330, 27490995, 54981990]

約数ペア:
[(1, 54981990), (2, 27490995), (3, 18327330), (5, 10996398), (6, 9163665), (7, 7854570), (9, 6109110), (10, 5498199), (14, 3927285), (15, 3665466), (18, 3054555), (21, 2618190), (27, 2036370), (30, 1832733), (35, 1570914), (42, 1309095), (45, 1221822), (54, 1018185), (63, 872730), (70, 785457), (81, 678790), (90, 610911), (105, 523638), (126, 436365), (135, 407274), (162, 339395), (189, 290910), (210, 261819), (270, 203637), (315, 174546), (378, 145455), (405, 135758), (567, 96970), (630, 87273), (810, 67879), (945, 58182), (1134, 48485), (1890, 29091), (2835, 19394), (5670, 9697)]

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