About the Number

488389640

488389639 ← → 488389641

2進数表記:11101000111000011110000001000

漢数字表記:四億八千八百三十八万九千六百四十

素因数分解:

2 3 × 5 1 × 37 1 × 329993 1

素因数の和:330041
約数の個数: 32
約数和(自身を含む): 1128579480
約数和(自身を除く): 640189840

約数列:
[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 329993, 659986, 1319972, 1649965, 2639944, 3299930, 6599860, 12209741, 13199720, 24419482, 48838964, 61048705, 97677928, 122097410, 244194820, 488389640]

約数ペア:
[(1, 488389640), (2, 244194820), (4, 122097410), (5, 97677928), (8, 61048705), (10, 48838964), (20, 24419482), (37, 13199720), (40, 12209741), (74, 6599860), (148, 3299930), (185, 2639944), (296, 1649965), (370, 1319972), (740, 659986), (1480, 329993)]

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