About the Number

138615390

138615389 ← → 138615391

2進数表記:1000010000110001101001011110

漢数字表記:一億三千八百六十一万五千三百九十

素因数分解:

2 1 × 3 2 × 5 1 × 1540171 1

素因数の和:1540184
約数の個数: 24
約数和(自身を含む): 360400248
約数和(自身を除く): 221784858

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 1540171, 3080342, 4620513, 7700855, 9241026, 13861539, 15401710, 23102565, 27723078, 46205130, 69307695, 138615390]

約数ペア:
[(1, 138615390), (2, 69307695), (3, 46205130), (5, 27723078), (6, 23102565), (9, 15401710), (10, 13861539), (15, 9241026), (18, 7700855), (30, 4620513), (45, 3080342), (90, 1540171)]

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