13905125

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:270

約数の個数: 32

約数和(自身を含む): 19219200

約数和(自身を除く): 5314075

約数列:

[1, 5, 13, 25, 43, 65, 125, 199, 215, 325, 559, 995, 1075, 1625, 2587, 2795, 4975, 5375, 8557, 12935, 13975, 24875, 42785, 64675, 69875, 111241, 213925, 323375, 556205, 1069625, 2781025, 13905125]

約数ペア:

[(1, 13905125), (5, 2781025), (13, 1069625), (25, 556205), (43, 323375), (65, 213925), (125, 111241), (199, 69875), (215, 64675), (325, 42785), (559, 24875), (995, 13975), (1075, 12935), (1625, 8557), (2587, 5375), (2795, 4975)]