About the Number

202123988

202123987 ← → 202123989

2進数表記:1100000011000010101011010100

漢数字表記:二億二百十二万三千九百八十八

素因数分解:

2 2 × 11 1 × 61 1 × 75307 1

素因数の和:75383
約数の個数: 24
約数和(自身を含む): 392204064
約数和(自身を除く): 190080076

約数列:
[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 75307, 150614, 301228, 828377, 1656754, 3313508, 4593727, 9187454, 18374908, 50530997, 101061994, 202123988]

約数ペア:
[(1, 202123988), (2, 101061994), (4, 50530997), (11, 18374908), (22, 9187454), (44, 4593727), (61, 3313508), (122, 1656754), (244, 828377), (671, 301228), (1342, 150614), (2684, 75307)]

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