20670675

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^2\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 36

約数和(自身を含む): 35794584

約数和(自身を除く): 15123909

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 521, 529, 575, 1563, 1587, 1725, 2605, 2645, 7815, 7935, 11983, 13025, 13225, 35949, 39075, 39675, 59915, 179745, 275609, 299575, 826827, 898725, 1378045, 4134135, 6890225, 20670675]

約数ペア:

[(1, 20670675), (3, 6890225), (5, 4134135), (15, 1378045), (23, 898725), (25, 826827), (69, 299575), (75, 275609), (115, 179745), (345, 59915), (521, 39675), (529, 39075), (575, 35949), (1563, 13225), (1587, 13025), (1725, 11983), (2605, 7935), (2645, 7815)]