217804925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{9439}}^1$

素因数の和:9533

約数の個数: 24

約数和(自身を含む): 294981120

約数和(自身を除く): 77176195

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 923, 1775, 4615, 9439, 23075, 47195, 122707, 235975, 613535, 670169, 3067675, 3350845, 8712197, 16754225, 43560985, 217804925]

約数ペア:

[(1, 217804925), (5, 43560985), (13, 16754225), (25, 8712197), (65, 3350845), (71, 3067675), (325, 670169), (355, 613535), (923, 235975), (1775, 122707), (4615, 47195), (9439, 23075)]