201979225

素因数分解:

$5^2\times 7^2\times {\mathrm{164881}}^1$

素因数の和:164905

約数の個数: 18

約数和(自身を含む): 291346494

約数和(自身を除く): 89367269

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 164881, 824405, 1154167, 4122025, 5770835, 8079169, 28854175, 40395845, 201979225]

約数ペア:

[(1, 201979225), (5, 40395845), (7, 28854175), (25, 8079169), (35, 5770835), (49, 4122025), (175, 1154167), (245, 824405), (1225, 164881)]