About the Number

201972940

201972939 ← → 201972941

2進数表記:1100000010011101110011001100

漢数字表記:二億百九十七万二千九百四十

素因数分解:

2 2 × 5 1 × 13 1 × 776819 1

素因数の和:776841
約数の個数: 24
約数和(自身を含む): 456770160
約数和(自身を除く): 254797220

約数列:
[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 776819, 1553638, 3107276, 3884095, 7768190, 10098647, 15536380, 20197294, 40394588, 50493235, 100986470, 201972940]

約数ペア:
[(1, 201972940), (2, 100986470), (4, 50493235), (5, 40394588), (10, 20197294), (13, 15536380), (20, 10098647), (26, 7768190), (52, 3884095), (65, 3107276), (130, 1553638), (260, 776819)]

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