217303975

素因数分解:

$5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{3347}}^1$

素因数の和:3424

約数の個数: 36

約数和(自身を含む): 319459464

約数和(自身を除く): 102155489

約数列:

[1, 5, 7, 25, 35, 49, 53, 175, 245, 265, 371, 1225, 1325, 1855, 2597, 3347, 9275, 12985, 16735, 23429, 64925, 83675, 117145, 164003, 177391, 585725, 820015, 886955, 1241737, 4100075, 4434775, 6208685, 8692159, 31043425, 43460795, 217303975]

約数ペア:

[(1, 217303975), (5, 43460795), (7, 31043425), (25, 8692159), (35, 6208685), (49, 4434775), (53, 4100075), (175, 1241737), (245, 886955), (265, 820015), (371, 585725), (1225, 177391), (1325, 164003), (1855, 117145), (2597, 83675), (3347, 64925), (9275, 23429), (12985, 16735)]