About the Number

202120

202119 ← → 202121

2進数表記:110001010110001000

漢数字表記:二十万二千百二十

素因数分解:

2 3 × 5 1 × 31 1 × 163 1

素因数の和:205
約数の個数: 32
約数和(自身を含む): 472320
約数和(自身を除く): 270200

約数列:
[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 163, 248, 310, 326, 620, 652, 815, 1240, 1304, 1630, 3260, 5053, 6520, 10106, 20212, 25265, 40424, 50530, 101060, 202120]

約数ペア:
[(1, 202120), (2, 101060), (4, 50530), (5, 40424), (8, 25265), (10, 20212), (20, 10106), (31, 6520), (40, 5053), (62, 3260), (124, 1630), (155, 1304), (163, 1240), (248, 815), (310, 652), (326, 620)]

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