About the Number

808020

808019 ← → 808021

2進数表記:11000101010001010100

漢数字表記:八十万八千二十

素因数分解:

2 2 × 3 2 × 5 1 × 67 2

素因数の和:149
約数の個数: 54
約数和(自身を含む): 2488122
約数和(自身を除く): 1680102

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 2010, 2412, 3015, 4020, 4489, 6030, 8978, 12060, 13467, 17956, 22445, 26934, 40401, 44890, 53868, 67335, 80802, 89780, 134670, 161604, 202005, 269340, 404010, 808020]

約数ペア:
[(1, 808020), (2, 404010), (3, 269340), (4, 202005), (5, 161604), (6, 134670), (9, 89780), (10, 80802), (12, 67335), (15, 53868), (18, 44890), (20, 40401), (30, 26934), (36, 22445), (45, 17956), (60, 13467), (67, 12060), (90, 8978), (134, 6030), (180, 4489), (201, 4020), (268, 3015), (335, 2412), (402, 2010), (603, 1340), (670, 1206), (804, 1005)]

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