16149725

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:317

約数の個数: 24

約数和(自身を含む): 20852832

約数和(自身を除く): 4703107

約数列:

[1, 5, 25, 43, 83, 181, 215, 415, 905, 1075, 2075, 3569, 4525, 7783, 15023, 17845, 38915, 75115, 89225, 194575, 375575, 645989, 3229945, 16149725]

約数ペア:

[(1, 16149725), (5, 3229945), (25, 645989), (43, 375575), (83, 194575), (181, 89225), (215, 75115), (415, 38915), (905, 17845), (1075, 15023), (2075, 7783), (3569, 4525)]