About the Number

201200720

201200719 ← → 201200721

2進数表記:1011111111100001010001010000

漢数字表記:二億百二十万七百二十

素因数分解:

2 4 × 5 1 × 7 1 × 53 1 × 6779 1

素因数の和:6852
約数の個数: 80
約数和(自身を含む): 544786560
約数和(自身を除く): 343585840

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2968, 3710, 4240, 5936, 6779, 7420, 13558, 14840, 27116, 29680, 33895, 47453, 54232, 67790, 94906, 108464, 135580, 189812, 237265, 271160, 359287, 379624, 474530, 542320, 718574, 759248, 949060, 1437148, 1796435, 1898120, 2515009, 2874296, 3592870, 3796240, 5030018, 5748592, 7185740, 10060036, 12575045, 14371480, 20120072, 25150090, 28742960, 40240144, 50300180, 100600360, 201200720]

約数ペア:
[(1, 201200720), (2, 100600360), (4, 50300180), (5, 40240144), (7, 28742960), (8, 25150090), (10, 20120072), (14, 14371480), (16, 12575045), (20, 10060036), (28, 7185740), (35, 5748592), (40, 5030018), (53, 3796240), (56, 3592870), (70, 2874296), (80, 2515009), (106, 1898120), (112, 1796435), (140, 1437148), (212, 949060), (265, 759248), (280, 718574), (371, 542320), (424, 474530), (530, 379624), (560, 359287), (742, 271160), (848, 237265), (1060, 189812), (1484, 135580), (1855, 108464), (2120, 94906), (2968, 67790), (3710, 54232), (4240, 47453), (5936, 33895), (6779, 29680), (7420, 27116), (13558, 14840)]

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