About the Number

20129430400

20129430399 ← → 20129430401

2進数表記:10010101111110011101011101110000000

漢数字表記:二百一億二千九百四十三万四百

素因数分解:

2 7 × 5 2 × 419 1 × 15013 1

素因数の和:15456
約数の個数: 96
約数和(自身を含む): 49847981400
約数和(自身を除く): 29718551000

約数列:
[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 419, 640, 800, 838, 1600, 1676, 2095, 3200, 3352, 4190, 6704, 8380, 10475, 13408, 15013, 16760, 20950, 26816, 30026, 33520, 41900, 53632, 60052, 67040, 75065, 83800, 120104, 134080, 150130, 167600, 240208, 268160, 300260, 335200, 375325, 480416, 600520, 670400, 750650, 960832, 1201040, 1340800, 1501300, 1921664, 2402080, 3002600, 4804160, 6005200, 6290447, 9608320, 12010400, 12580894, 24020800, 25161788, 31452235, 48041600, 50323576, 62904470, 100647152, 125808940, 157261175, 201294304, 251617880, 314522350, 402588608, 503235760, 629044700, 805177216, 1006471520, 1258089400, 2012943040, 2516178800, 4025886080, 5032357600, 10064715200, 20129430400]

約数ペア:
[(1, 20129430400), (2, 10064715200), (4, 5032357600), (5, 4025886080), (8, 2516178800), (10, 2012943040), (16, 1258089400), (20, 1006471520), (25, 805177216), (32, 629044700), (40, 503235760), (50, 402588608), (64, 314522350), (80, 251617880), (100, 201294304), (128, 157261175), (160, 125808940), (200, 100647152), (320, 62904470), (400, 50323576), (419, 48041600), (640, 31452235), (800, 25161788), (838, 24020800), (1600, 12580894), (1676, 12010400), (2095, 9608320), (3200, 6290447), (3352, 6005200), (4190, 4804160), (6704, 3002600), (8380, 2402080), (10475, 1921664), (13408, 1501300), (15013, 1340800), (16760, 1201040), (20950, 960832), (26816, 750650), (30026, 670400), (33520, 600520), (41900, 480416), (53632, 375325), (60052, 335200), (67040, 300260), (75065, 268160), (83800, 240208), (120104, 167600), (134080, 150130)]

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