About the Number

121672890

121672889 ← → 121672891

2進数表記:111010000001001010010111010

漢数字表記:一億二千百六十七万二千八百九十

素因数分解:

2 1 × 3 2 × 5 1 × 1351921 1

素因数の和:1351934
約数の個数: 24
約数和(自身を含む): 316349748
約数和(自身を除く): 194676858

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 1351921, 2703842, 4055763, 6759605, 8111526, 12167289, 13519210, 20278815, 24334578, 40557630, 60836445, 121672890]

約数ペア:
[(1, 121672890), (2, 60836445), (3, 40557630), (5, 24334578), (6, 20278815), (9, 13519210), (10, 12167289), (15, 8111526), (18, 6759605), (30, 4055763), (45, 2703842), (90, 1351921)]

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