About the Number

23402890

23402889 ← → 23402891

2進数表記:1011001010001100110001010

漢数字表記:二千三百四十万二千八百九十

素因数分解:

2 1 × 5 1 × 7 3 × 6823 1

素因数の和:6851
約数の個数: 32
約数和(自身を含む): 49132800
約数和(自身を除く): 25729910

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 6823, 13646, 34115, 47761, 68230, 95522, 238805, 334327, 477610, 668654, 1671635, 2340289, 3343270, 4680578, 11701445, 23402890]

約数ペア:
[(1, 23402890), (2, 11701445), (5, 4680578), (7, 3343270), (10, 2340289), (14, 1671635), (35, 668654), (49, 477610), (70, 334327), (98, 238805), (245, 95522), (343, 68230), (490, 47761), (686, 34115), (1715, 13646), (3430, 6823)]

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