About the Number

31302020

31302019 ← → 31302021

2進数表記:1110111011010000110000100

漢数字表記:三千百三十万二千二十

素因数分解:

2 2 × 5 1 × 29 2 × 1861 1

素因数の和:1928
約数の個数: 36
約数和(自身を含む): 68115684
約数和(自身を除く): 36813664

約数列:
[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1682, 1861, 3364, 3722, 4205, 7444, 8410, 9305, 16820, 18610, 37220, 53969, 107938, 215876, 269845, 539690, 1079380, 1565101, 3130202, 6260404, 7825505, 15651010, 31302020]

約数ペア:
[(1, 31302020), (2, 15651010), (4, 7825505), (5, 6260404), (10, 3130202), (20, 1565101), (29, 1079380), (58, 539690), (116, 269845), (145, 215876), (290, 107938), (580, 53969), (841, 37220), (1682, 18610), (1861, 16820), (3364, 9305), (3722, 8410), (4205, 7444)]

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