19337825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 36

約数和(自身を含む): 27230400

約数和(自身を除く): 7892575

約数列:

[1, 5, 13, 23, 25, 65, 115, 169, 199, 299, 325, 575, 845, 995, 1495, 2587, 3887, 4225, 4577, 4975, 7475, 12935, 19435, 22885, 33631, 59501, 64675, 97175, 114425, 168155, 297505, 773513, 840775, 1487525, 3867565, 19337825]

約数ペア:

[(1, 19337825), (5, 3867565), (13, 1487525), (23, 840775), (25, 773513), (65, 297505), (115, 168155), (169, 114425), (199, 97175), (299, 64675), (325, 59501), (575, 33631), (845, 22885), (995, 19435), (1495, 12935), (2587, 7475), (3887, 4975), (4225, 4577)]