About the Number

201988028

201988027 ← → 201988029

2進数表記:1100000010100001011110111100

漢数字表記:二億百九十八万八千二十八

素因数分解:

2 2 × 11 1 × 43 1 × 106759 1

素因数の和:106817
約数の個数: 24
約数和(自身を含む): 394584960
約数和(自身を除く): 192596932

約数列:
[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 106759, 213518, 427036, 1174349, 2348698, 4590637, 4697396, 9181274, 18362548, 50497007, 100994014, 201988028]

約数ペア:
[(1, 201988028), (2, 100994014), (4, 50497007), (11, 18362548), (22, 9181274), (43, 4697396), (44, 4590637), (86, 2348698), (172, 1174349), (473, 427036), (946, 213518), (1892, 106759)]

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