About the Number

2021880

2021879 ← → 2021881

2進数表記:111101101100111111000

漢数字表記:二百二万千八百八十

素因数分解:

2 3 × 3 1 × 5 1 × 7 1 × 29 1 × 83 1

素因数の和:133
約数の個数: 128
約数和(自身を含む): 7257600
約数和(自身を除く): 5235720

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 83, 84, 87, 105, 116, 120, 140, 145, 166, 168, 174, 203, 210, 232, 249, 280, 290, 332, 348, 406, 415, 420, 435, 498, 580, 581, 609, 664, 696, 812, 830, 840, 870, 996, 1015, 1160, 1162, 1218, 1245, 1624, 1660, 1740, 1743, 1992, 2030, 2324, 2407, 2436, 2490, 2905, 3045, 3320, 3480, 3486, 4060, 4648, 4814, 4872, 4980, 5810, 6090, 6972, 7221, 8120, 8715, 9628, 9960, 11620, 12035, 12180, 13944, 14442, 16849, 17430, 19256, 23240, 24070, 24360, 28884, 33698, 34860, 36105, 48140, 50547, 57768, 67396, 69720, 72210, 84245, 96280, 101094, 134792, 144420, 168490, 202188, 252735, 288840, 336980, 404376, 505470, 673960, 1010940, 2021880]

約数ペア:
[(1, 2021880), (2, 1010940), (3, 673960), (4, 505470), (5, 404376), (6, 336980), (7, 288840), (8, 252735), (10, 202188), (12, 168490), (14, 144420), (15, 134792), (20, 101094), (21, 96280), (24, 84245), (28, 72210), (29, 69720), (30, 67396), (35, 57768), (40, 50547), (42, 48140), (56, 36105), (58, 34860), (60, 33698), (70, 28884), (83, 24360), (84, 24070), (87, 23240), (105, 19256), (116, 17430), (120, 16849), (140, 14442), (145, 13944), (166, 12180), (168, 12035), (174, 11620), (203, 9960), (210, 9628), (232, 8715), (249, 8120), (280, 7221), (290, 6972), (332, 6090), (348, 5810), (406, 4980), (415, 4872), (420, 4814), (435, 4648), (498, 4060), (580, 3486), (581, 3480), (609, 3320), (664, 3045), (696, 2905), (812, 2490), (830, 2436), (840, 2407), (870, 2324), (996, 2030), (1015, 1992), (1160, 1743), (1162, 1740), (1218, 1660), (1245, 1624)]

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