208836775

素因数分解:

$5^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{1129}}^1$

素因数の和:1304

約数の個数: 36

約数和(自身を含む): 303499920

約数和(自身を除く): 94663145

約数列:

[1, 5, 7, 25, 35, 49, 151, 175, 245, 755, 1057, 1129, 1225, 3775, 5285, 5645, 7399, 7903, 26425, 28225, 36995, 39515, 55321, 170479, 184975, 197575, 276605, 852395, 1193353, 1383025, 4261975, 5966765, 8353471, 29833825, 41767355, 208836775]

約数ペア:

[(1, 208836775), (5, 41767355), (7, 29833825), (25, 8353471), (35, 5966765), (49, 4261975), (151, 1383025), (175, 1193353), (245, 852395), (755, 276605), (1057, 197575), (1129, 184975), (1225, 170479), (3775, 55321), (5285, 39515), (5645, 36995), (7399, 28225), (7903, 26425)]