About the Number

31421140

31421139 ← → 31421141

2進数表記:1110111110111001011010100

漢数字表記:三千百四十二万千百四十

素因数分解:

2 2 × 5 1 × 37 1 × 42461 1

素因数の和:42507
約数の個数: 24
約数和(自身を含む): 67769352
約数和(自身を除く): 36348212

約数列:
[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 42461, 84922, 169844, 212305, 424610, 849220, 1571057, 3142114, 6284228, 7855285, 15710570, 31421140]

約数ペア:
[(1, 31421140), (2, 15710570), (4, 7855285), (5, 6284228), (10, 3142114), (20, 1571057), (37, 849220), (74, 424610), (148, 212305), (185, 169844), (370, 84922), (740, 42461)]

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