251489985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{2543}}^1$

素因数の和:2917

約数の個数: 32

約数和(自身を含む): 424949760

約数和(自身を除く): 173459775

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 347, 1041, 1735, 2543, 5205, 6593, 7629, 12715, 19779, 32965, 38145, 48317, 98895, 144951, 241585, 724755, 882421, 2647263, 4412105, 13236315, 16765999, 50297997, 83829995, 251489985]

約数ペア:

[(1, 251489985), (3, 83829995), (5, 50297997), (15, 16765999), (19, 13236315), (57, 4412105), (95, 2647263), (285, 882421), (347, 724755), (1041, 241585), (1735, 144951), (2543, 98895), (5205, 48317), (6593, 38145), (7629, 32965), (12715, 19779)]