About the Number

118907980

118907979 ← → 118907981

2進数表記:111000101100110010001001100

漢数字表記:一億千八百九十万七千九百八十

素因数分解:

2 2 × 5 1 × 359 1 × 16561 1

素因数の和:16929
約数の個数: 24
約数和(自身を含む): 250417440
約数和(自身を除く): 131509460

約数列:
[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 16561, 33122, 66244, 82805, 165610, 331220, 5945399, 11890798, 23781596, 29726995, 59453990, 118907980]

約数ペア:
[(1, 118907980), (2, 59453990), (4, 29726995), (5, 23781596), (10, 11890798), (20, 5945399), (359, 331220), (718, 165610), (1436, 82805), (1795, 66244), (3590, 33122), (7180, 16561)]

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