321425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1$

素因数の和:89

約数の個数: 24

約数和(自身を含む): 458304

約数和(自身を除く): 136879

約数列:

[1, 5, 13, 23, 25, 43, 65, 115, 215, 299, 325, 559, 575, 989, 1075, 1495, 2795, 4945, 7475, 12857, 13975, 24725, 64285, 321425]

約数ペア:

[(1, 321425), (5, 64285), (13, 24725), (23, 13975), (25, 12857), (43, 7475), (65, 4945), (115, 2795), (215, 1495), (299, 1075), (325, 989), (559, 575)]