About the Number

2271990

2271989 ← → 2271991

2進数表記:1000101010101011110110

漢数字表記:二百二十七万千九百九十

素因数分解:

2 1 × 3 1 × 5 1 × 7 1 × 31 1 × 349 1

素因数の和:397
約数の個数: 64
約数和(自身を含む): 6451200
約数和(自身を除く): 4179210

約数列:
[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 349, 434, 465, 651, 698, 930, 1047, 1085, 1302, 1745, 2094, 2170, 2443, 3255, 3490, 4886, 5235, 6510, 7329, 10470, 10819, 12215, 14658, 21638, 24430, 32457, 36645, 54095, 64914, 73290, 75733, 108190, 151466, 162285, 227199, 324570, 378665, 454398, 757330, 1135995, 2271990]

約数ペア:
[(1, 2271990), (2, 1135995), (3, 757330), (5, 454398), (6, 378665), (7, 324570), (10, 227199), (14, 162285), (15, 151466), (21, 108190), (30, 75733), (31, 73290), (35, 64914), (42, 54095), (62, 36645), (70, 32457), (93, 24430), (105, 21638), (155, 14658), (186, 12215), (210, 10819), (217, 10470), (310, 7329), (349, 6510), (434, 5235), (465, 4886), (651, 3490), (698, 3255), (930, 2443), (1047, 2170), (1085, 2094), (1302, 1745)]

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