257445790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4603}}^1$

素因数の和:4681

約数の個数: 64

約数和(自身を含む): 572811264

約数和(自身を除く): 315365474

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 47, 70, 85, 94, 119, 170, 235, 238, 329, 470, 595, 658, 799, 1190, 1598, 1645, 3290, 3995, 4603, 5593, 7990, 9206, 11186, 23015, 27965, 32221, 46030, 55930, 64442, 78251, 156502, 161105, 216341, 322210, 391255, 432682, 547757, 782510, 1081705, 1095514, 1514387, 2163410, 2738785, 3028774, 3677797, 5477570, 7355594, 7571935, 15143870, 18388985, 25744579, 36777970, 51489158, 128722895, 257445790]

約数ペア:

[(1, 257445790), (2, 128722895), (5, 51489158), (7, 36777970), (10, 25744579), (14, 18388985), (17, 15143870), (34, 7571935), (35, 7355594), (47, 5477570), (70, 3677797), (85, 3028774), (94, 2738785), (119, 2163410), (170, 1514387), (235, 1095514), (238, 1081705), (329, 782510), (470, 547757), (595, 432682), (658, 391255), (799, 322210), (1190, 216341), (1598, 161105), (1645, 156502), (3290, 78251), (3995, 64442), (4603, 55930), (5593, 46030), (7990, 32221), (9206, 27965), (11186, 23015)]