About the Number

291216940

291216939 ← → 291216941

2進数表記:10001010110111001111000101100

漢数字表記:二億九千百二十一万六千九百四十

素因数分解:

2 2 × 5 1 × 7 1 × 2080121 1

素因数の和:2080137
約数の個数: 24
約数和(自身を含む): 698920992
約数和(自身を除く): 407704052

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2080121, 4160242, 8320484, 10400605, 14560847, 20801210, 29121694, 41602420, 58243388, 72804235, 145608470, 291216940]

約数ペア:
[(1, 291216940), (2, 145608470), (4, 72804235), (5, 58243388), (7, 41602420), (10, 29121694), (14, 20801210), (20, 14560847), (28, 10400605), (35, 8320484), (70, 4160242), (140, 2080121)]

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