51340720

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1489}}^1$

素因数の和:1933

約数の個数: 40

約数和(自身を含む): 119724480

約数和(自身を除く): 68383760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1489, 1724, 2155, 2978, 3448, 4310, 5956, 6896, 7445, 8620, 11912, 14890, 17240, 23824, 29780, 34480, 59560, 119120, 641759, 1283518, 2567036, 3208795, 5134072, 6417590, 10268144, 12835180, 25670360, 51340720]

約数ペア:

[(1, 51340720), (2, 25670360), (4, 12835180), (5, 10268144), (8, 6417590), (10, 5134072), (16, 3208795), (20, 2567036), (40, 1283518), (80, 641759), (431, 119120), (862, 59560), (1489, 34480), (1724, 29780), (2155, 23824), (2978, 17240), (3448, 14890), (4310, 11912), (5956, 8620), (6896, 7445)]