About the Number

20431890

20431889 ← → 20431891

2進数表記:1001101111100010000010010

漢数字表記:二千四十三万千八百九十

素因数分解:

2 1 × 3 2 × 5 1 × 379 1 × 599 1

素因数の和:991
約数の個数: 48
約数和(自身を含む): 53352000
約数和(自身を除く): 32920110

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 379, 599, 758, 1137, 1198, 1797, 1895, 2274, 2995, 3411, 3594, 3790, 5391, 5685, 5990, 6822, 8985, 10782, 11370, 17055, 17970, 26955, 34110, 53910, 227021, 454042, 681063, 1135105, 1362126, 2043189, 2270210, 3405315, 4086378, 6810630, 10215945, 20431890]

約数ペア:
[(1, 20431890), (2, 10215945), (3, 6810630), (5, 4086378), (6, 3405315), (9, 2270210), (10, 2043189), (15, 1362126), (18, 1135105), (30, 681063), (45, 454042), (90, 227021), (379, 53910), (599, 34110), (758, 26955), (1137, 17970), (1198, 17055), (1797, 11370), (1895, 10782), (2274, 8985), (2995, 6822), (3411, 5990), (3594, 5685), (3790, 5391)]

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