About the Number

122889640

122889639 ← → 122889641

2進数表記:111010100110010010110101000

漢数字表記:一億二千二百八十八万九千六百四十

素因数分解:

2 3 × 5 1 × 71 1 × 43271 1

素因数の和:43353
約数の個数: 32
約数和(自身を含む): 280402560
約数和(自身を除く): 157512920

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 43271, 86542, 173084, 216355, 346168, 432710, 865420, 1730840, 3072241, 6144482, 12288964, 15361205, 24577928, 30722410, 61444820, 122889640]

約数ペア:
[(1, 122889640), (2, 61444820), (4, 30722410), (5, 24577928), (8, 15361205), (10, 12288964), (20, 6144482), (40, 3072241), (71, 1730840), (142, 865420), (284, 432710), (355, 346168), (568, 216355), (710, 173084), (1420, 86542), (2840, 43271)]

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