257715822

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{2237}}^1$

素因数の和:2473

約数の個数: 64

約数和(自身を含む): 637668864

約数和(自身を除く): 379953042

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 211, 273, 422, 546, 633, 1266, 1477, 2237, 2743, 2954, 4431, 4474, 5486, 6711, 8229, 8862, 13422, 15659, 16458, 19201, 29081, 31318, 38402, 46977, 57603, 58162, 87243, 93954, 115206, 174486, 203567, 407134, 472007, 610701, 944014, 1221402, 1416021, 2832042, 3304049, 6136091, 6608098, 9912147, 12272182, 18408273, 19824294, 36816546, 42952637, 85905274, 128857911, 257715822]

約数ペア:

[(1, 257715822), (2, 128857911), (3, 85905274), (6, 42952637), (7, 36816546), (13, 19824294), (14, 18408273), (21, 12272182), (26, 9912147), (39, 6608098), (42, 6136091), (78, 3304049), (91, 2832042), (182, 1416021), (211, 1221402), (273, 944014), (422, 610701), (546, 472007), (633, 407134), (1266, 203567), (1477, 174486), (2237, 115206), (2743, 93954), (2954, 87243), (4431, 58162), (4474, 57603), (5486, 46977), (6711, 38402), (8229, 31318), (8862, 29081), (13422, 19201), (15659, 16458)]