About the Number

149401380

149401379 ← → 149401381

2進数表記:1000111001111010111100100100

漢数字表記:一億四千九百四十万千三百八十

素因数分解:

2 2 × 3 1 × 5 1 × 2490023 1

素因数の和:2490035
約数の個数: 24
約数和(自身を含む): 418324032
約数和(自身を除く): 268922652

約数列:
[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 2490023, 4980046, 7470069, 9960092, 12450115, 14940138, 24900230, 29880276, 37350345, 49800460, 74700690, 149401380]

約数ペア:
[(1, 149401380), (2, 74700690), (3, 49800460), (4, 37350345), (5, 29880276), (6, 24900230), (10, 14940138), (12, 12450115), (15, 9960092), (20, 7470069), (30, 4980046), (60, 2490023)]

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