About the Number

25281490

25281489 ← → 25281491

2進数表記:1100000011100001111010010

漢数字表記:二千五百二十八万千四百九十

素因数分解:

2 1 × 5 1 × 13 1 × 113 1 × 1721 1

素因数の和:1854
約数の個数: 32
約数和(自身を含む): 49469616
約数和(自身を除く): 24188126

約数列:
[1, 2, 5, 10, 13, 26, 65, 113, 130, 226, 565, 1130, 1469, 1721, 2938, 3442, 7345, 8605, 14690, 17210, 22373, 44746, 111865, 194473, 223730, 388946, 972365, 1944730, 2528149, 5056298, 12640745, 25281490]

約数ペア:
[(1, 25281490), (2, 12640745), (5, 5056298), (10, 2528149), (13, 1944730), (26, 972365), (65, 388946), (113, 223730), (130, 194473), (226, 111865), (565, 44746), (1130, 22373), (1469, 17210), (1721, 14690), (2938, 8605), (3442, 7345)]

このpageの処理時間: 0.005051612854003906 seconds