201620425

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2621}}^1$

素因数の和:2829

約数の個数: 24

約数和(自身を含む): 266279832

約数和(自身を除く): 64659407

約数列:

[1, 5, 17, 25, 85, 181, 425, 905, 2621, 3077, 4525, 13105, 15385, 44557, 65525, 76925, 222785, 474401, 1113925, 2372005, 8064817, 11860025, 40324085, 201620425]

約数ペア:

[(1, 201620425), (5, 40324085), (17, 11860025), (25, 8064817), (85, 2372005), (181, 1113925), (425, 474401), (905, 222785), (2621, 76925), (3077, 65525), (4525, 44557), (13105, 15385)]