19617275

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{313}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 25697760

約数和(自身を除く): 6080485

約数列:

[1, 5, 23, 25, 109, 115, 313, 545, 575, 1565, 2507, 2725, 7199, 7825, 12535, 34117, 35995, 62675, 170585, 179975, 784691, 852925, 3923455, 19617275]

約数ペア:

[(1, 19617275), (5, 3923455), (23, 852925), (25, 784691), (109, 179975), (115, 170585), (313, 62675), (545, 35995), (575, 34117), (1565, 12535), (2507, 7825), (2725, 7199)]