209420745

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1\times {\mathrm{1117}}^1$

素因数の和:1585

約数の個数: 32

約数和(自身を含む): 347742720

約数和(自身を除く): 138321975

約数列:

[1, 3, 5, 15, 29, 87, 145, 431, 435, 1117, 1293, 2155, 3351, 5585, 6465, 12499, 16755, 32393, 37497, 62495, 97179, 161965, 187485, 481427, 485895, 1444281, 2407135, 7221405, 13961383, 41884149, 69806915, 209420745]

約数ペア:

[(1, 209420745), (3, 69806915), (5, 41884149), (15, 13961383), (29, 7221405), (87, 2407135), (145, 1444281), (431, 485895), (435, 481427), (1117, 187485), (1293, 161965), (2155, 97179), (3351, 62495), (5585, 37497), (6465, 32393), (12499, 16755)]