About the Number

18520980

18520979 ← → 18520981

2進数表記:1000110101001101110010100

漢数字表記:千八百五十二万九百八十

素因数分解:

2 2 × 3 1 × 5 1 × 23 1 × 13421 1

素因数の和:13456
約数の個数: 48
約数和(自身を含む): 54117504
約数和(自身を除く): 35596524

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 13421, 26842, 40263, 53684, 67105, 80526, 134210, 161052, 201315, 268420, 308683, 402630, 617366, 805260, 926049, 1234732, 1543415, 1852098, 3086830, 3704196, 4630245, 6173660, 9260490, 18520980]

約数ペア:
[(1, 18520980), (2, 9260490), (3, 6173660), (4, 4630245), (5, 3704196), (6, 3086830), (10, 1852098), (12, 1543415), (15, 1234732), (20, 926049), (23, 805260), (30, 617366), (46, 402630), (60, 308683), (69, 268420), (92, 201315), (115, 161052), (138, 134210), (230, 80526), (276, 67105), (345, 53684), (460, 40263), (690, 26842), (1380, 13421)]

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