31100225

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{433}}^1$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 44317476

約数和(自身を除く): 13217251

約数列:

[1, 5, 13, 17, 25, 65, 85, 169, 221, 325, 425, 433, 845, 1105, 2165, 2873, 4225, 5525, 5629, 7361, 10825, 14365, 28145, 36805, 71825, 73177, 95693, 140725, 184025, 365885, 478465, 1244009, 1829425, 2392325, 6220045, 31100225]

約数ペア:

[(1, 31100225), (5, 6220045), (13, 2392325), (17, 1829425), (25, 1244009), (65, 478465), (85, 365885), (169, 184025), (221, 140725), (325, 95693), (425, 73177), (433, 71825), (845, 36805), (1105, 28145), (2165, 14365), (2873, 10825), (4225, 7361), (5525, 5629)]