19725075

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3023}}^1$

素因数の和:3068

約数の個数: 36

約数和(自身を含む): 36560160

約数和(自身を除く): 16835085

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 3023, 6525, 9069, 15115, 27207, 45345, 75575, 87667, 136035, 226725, 263001, 438335, 680175, 789003, 1315005, 2191675, 3945015, 6575025, 19725075]

約数ペア:

[(1, 19725075), (3, 6575025), (5, 3945015), (9, 2191675), (15, 1315005), (25, 789003), (29, 680175), (45, 438335), (75, 263001), (87, 226725), (145, 136035), (225, 87667), (261, 75575), (435, 45345), (725, 27207), (1305, 15115), (2175, 9069), (3023, 6525)]