About the Number

2021381880

2021381879 ← → 2021381881

2進数表記:1111000011110111101011011111000

漢数字表記:二十億二千百三十八万千八百八十

素因数分解:

2 3 × 3 1 × 5 1 × 7 1 × 19 1 × 126653 1

素因数の和:126693
約数の個数: 128
約数和(自身を含む): 7295270400
約数和(自身を除く): 5273888520

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5320, 7980, 15960, 126653, 253306, 379959, 506612, 633265, 759918, 886571, 1013224, 1266530, 1519836, 1773142, 1899795, 2406407, 2533060, 2659713, 3039672, 3546284, 3799590, 4432855, 4812814, 5066120, 5319426, 7092568, 7219221, 7599180, 8865710, 9625628, 10638852, 12032035, 13298565, 14438442, 15198360, 16844849, 17731420, 19251256, 21277704, 24064070, 26597130, 28876884, 33689698, 35462840, 36096105, 48128140, 50534547, 53194260, 57753768, 67379396, 72192210, 84224245, 96256280, 101069094, 106388520, 134758792, 144384420, 168448490, 202138188, 252672735, 288768840, 336896980, 404276376, 505345470, 673793960, 1010690940, 2021381880]

約数ペア:
[(1, 2021381880), (2, 1010690940), (3, 673793960), (4, 505345470), (5, 404276376), (6, 336896980), (7, 288768840), (8, 252672735), (10, 202138188), (12, 168448490), (14, 144384420), (15, 134758792), (19, 106388520), (20, 101069094), (21, 96256280), (24, 84224245), (28, 72192210), (30, 67379396), (35, 57753768), (38, 53194260), (40, 50534547), (42, 48128140), (56, 36096105), (57, 35462840), (60, 33689698), (70, 28876884), (76, 26597130), (84, 24064070), (95, 21277704), (105, 19251256), (114, 17731420), (120, 16844849), (133, 15198360), (140, 14438442), (152, 13298565), (168, 12032035), (190, 10638852), (210, 9625628), (228, 8865710), (266, 7599180), (280, 7219221), (285, 7092568), (380, 5319426), (399, 5066120), (420, 4812814), (456, 4432855), (532, 3799590), (570, 3546284), (665, 3039672), (760, 2659713), (798, 2533060), (840, 2406407), (1064, 1899795), (1140, 1773142), (1330, 1519836), (1596, 1266530), (1995, 1013224), (2280, 886571), (2660, 759918), (3192, 633265), (3990, 506612), (5320, 379959), (7980, 253306), (15960, 126653)]

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