About the Number

2572990

2572989 ← → 2572991

2進数表記:1001110100001010111110

漢数字表記:二百五十七万二千九百九十

素因数分解:

2 1 × 5 1 × 7 2 × 59 1 × 89 1

素因数の和:169
約数の個数: 48
約数和(自身を含む): 5540400
約数和(自身を除く): 2967410

約数列:
[1, 2, 5, 7, 10, 14, 35, 49, 59, 70, 89, 98, 118, 178, 245, 295, 413, 445, 490, 590, 623, 826, 890, 1246, 2065, 2891, 3115, 4130, 4361, 5251, 5782, 6230, 8722, 10502, 14455, 21805, 26255, 28910, 36757, 43610, 52510, 73514, 183785, 257299, 367570, 514598, 1286495, 2572990]

約数ペア:
[(1, 2572990), (2, 1286495), (5, 514598), (7, 367570), (10, 257299), (14, 183785), (35, 73514), (49, 52510), (59, 43610), (70, 36757), (89, 28910), (98, 26255), (118, 21805), (178, 14455), (245, 10502), (295, 8722), (413, 6230), (445, 5782), (490, 5251), (590, 4361), (623, 4130), (826, 3115), (890, 2891), (1246, 2065)]

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