257213892

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{35081}}^1$

素因数の和:35148

約数の個数: 48

約数和(自身を含む): 660102912

約数和(自身を除く): 402889020

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 3666, 7332, 35081, 70162, 105243, 140324, 210486, 420972, 456053, 912106, 1368159, 1648807, 1824212, 2736318, 3297614, 4946421, 5472636, 6595228, 9892842, 19785684, 21434491, 42868982, 64303473, 85737964, 128606946, 257213892]

約数ペア:

[(1, 257213892), (2, 128606946), (3, 85737964), (4, 64303473), (6, 42868982), (12, 21434491), (13, 19785684), (26, 9892842), (39, 6595228), (47, 5472636), (52, 4946421), (78, 3297614), (94, 2736318), (141, 1824212), (156, 1648807), (188, 1368159), (282, 912106), (564, 456053), (611, 420972), (1222, 210486), (1833, 140324), (2444, 105243), (3666, 70162), (7332, 35081)]